This is my first post here. I am seasoned Nokia N95-3 users and now i am thinking about buying N810 to replace carrying laptop with me when I travel. I have searched for reviews but my couple question could not be answered. I am writing this hoping that N810 owners can answer some of my questions.
BWT I have Nokia N95-3 with AT&T 3G data and I plan on pairing with it.

Questions are in order of importance to me

1-Can you create,view & edit office docs (Word,Excel etc) on this out of the box? If not can any installed app would do it?

2- Are you limited to Nokia maps on it or can you install Google Maps, Tomtom and/or Garmin on this thing?

3- Does it have contacts AND calendar built in? Can you import/export and later sync your contacts/calendar items to PC (say outlook) or online services? Is there a app like "Nokia PC suite" for this thing?

4- Can it do VOIP like N95-3 or better? Support for outbound proxy & stun? I know it supports gizmo but i want to configure any other SIP say voipbusters.com or broadvoice.com etc

5- Does it have real player like N series phones? Can you stream bbc news stream from url like
rtsp://rmlive.bbc.co.uk/bbc-rbs/rmlive/ev7/live24/worldservice/livenews_v8.ra

6- Does it have many third party apps available (preferably free) that would enhance productivity?

7- How hackable it is if you are a linux guy? Can you develop stuff on it with gcc?

I appreciate all the help provided. It will definitely help me device.

There's one of these posts a week. There's a lot of overlap between questions-before-I-buy-of-the-week posts, so you really should search for some of those, and read them.

That said:

No.

Gnumeric is available, and quite handily does spreadsheet work, with Excel compatibility. I use and recommend.

For word processing, Abiword is now an open beta, but (as I understand) it's only useful on N810s or with a BT/USB keyboard due to onscreen keyboard issues. I have an N800 (they're practically identical internally, but among hardware differences, we lack a keyboard), and my BT keyboard's dead ATM, so you'll need advice from others on usability; there's a couple threads around you can read.

OOo is available, either natively in Debian, or by installing Debian as a chroot environment, rather than as a boot environment. It's even slower than on a desktop, of course.

KOffice is in KDE, which Penguinbait has built, and also has some success; I think it's slower than abiword and gnumeric, but it's definitely faster (and less MS-compatible) than OOo.

No, no, no, and/or no.
There are other mapping softwares available, but not any of those. Maemomapper is the one I use most.

PIM is sorely wanting, if you want it. Possible solutions are GPE, pimlico, gvm (Palm emulation) and probably some others. None of these is really considered satisfactory by those who want PIM, I guess.

Dunno. Has generic SIP support, but I don't know enough about VoIP to talk.

I don't know about N-series phones, but it plays that just fine.

I've no clue what you want to produce. Check http://maemo.org/downloads/

Finally, a real question. Absolutely!
As alluded to before, you can install Debian as a boot-time alternative. You can also (after cloning the OS onto an SD for more room, at least) set up with gcc and the works under ITOS, and gleefully build stuff, yes. If you're asking that question, it might very well be the device for you!

"Help me device"... Say what?

Thanks!

correction.
It will definitely help me device=> It will definitely help me decide

My basic answer: you can use this instead of a laptop. But it is often implied that someone is going to use their tablet instead of a laptop and do work-related stuff. Fine, but do you think I am going to ask my employer to throw out all the desktop and laptop computers at my job and put in tablets instead? No, laptops and desktops are better for doing work-related stuff. If you are on vacation, you can use a tablet. You can do light work-related stuff on a tablet. But I don't think the world is going to throw all its desktops and laptops in the dumpster -- they have their functions.

There are more third-party apps available than I can keep up with, and I try.

As Benson mentioned, we get posts basically identical to yours on a weekly basis. You might benefit from clicking on Wiki at the top of this page and reading the information there. Any information you see there about the N800 or N810 is what you are looking for. Any information you see about the N770 is probably too dated.

Only thing i can add to Bensons is that maemo mapper allows you to use google's maps as one of many repositories.. there is also yahoo maps, ve street, open street and some others. if you have time to plan ahead you can download and save the maps before hand.. otherwise it requires an active internet connection.

Agree, i am not looking for a work replacement but mostly when i am traveling and want to do light browsing, finding restaurants, flight status, blogging,checking email, im.
Again i am few so i will try to search and use Wiki before posting. I did google on my questions but could not get any definitive answer except finding this site

EDIT: i heard bad reviews on the GPS functionality of this thing. i have Nokia N95-3 with Tomtom running on it and it rocks. I was hoping to get that software on N810 and use the big screen instead driving with directions on a small phone screen. thoughts?

with the new firmware, diablo, my gps problems are gone. By the time I get to the end of the street, its locked and giving me directions. You guys forgot to mention that google docs also works.

Just FYI, there is not much commercial software for the tablets, and only two "need" money (i.e. better Maps, Rhapsody). Everything is basically open source or at least free. So don't expect things like the universal support for the iphone or windows mobile (you know, like the million of iphone optimized sites).

As for VOIP, the n810 does it fine with the built in client. You can even get free calls to landlines with Gizmo, Grandcentral, and Grandcentral-dialer

All I've heard against it is hardware issues with acquiring satellites, not much against the software... If you've got a GPS S60 phone, I've seen a reference on here to some app which makes the phone look like a BT GPS, allowing you to use that instead; the available apps then will probably do well.

Of course, the Diablo update has helped some (with the locking issue), and not others. YMMV on that.

Maemo mapper does driving directions quite well if you download the routes (it uses google maps online), but you'll need a BT link to your phone and a data plan to get updated routes while driving (if you go off course). Maps, I think, does on-the-fly routing with no internet, but that's the paid version.

The GPS usually takes about 5 minutes for the initial lock, but has taken a bit longer at times for me (using Diablo). GPS was more of a toy for me, but the lack of offline routing (without paying, anyway) is kind of disappointing.

I think RoadMap actually stores the street data and I had seen references to routing in it -- it would be very awesome to use Maemo Mapper with RoadMap as a service to get basic routing directions. Of course, the main point is: if you want accurate routing, be prepared to pay for it. While Maemo Mapper can get them online, you never know when a service like that might be disabled by the providers.

@andreww What are you talking about? RoadMap does give routing, for free, without Maemo Mapper, and stores everything in vector format so its fits on a SD card. I use it every day just to hear the annoying "Approaching XXX street" from flite to keep me awake.