Granted there are still some basic features missing on the n900 that are available on other phones like MMS, but PR1.2 has made some improvements. I can't comment on the speed and performance because i've reflashed my phone and plan on starting from scratch, so the phone is obviously performing really good.
However, the USSD commands are working now and have long been a sought-after feature. Also, I'm really enjoying the new ovi maps, just feels better. It got a lock in less than 10 seconds while i was indoors.
What else... QT4.6 pre installed, which is supposed to be big news as i've gathered from the many threads here (i've personally haven't benefited from this yet but there's a first time for everything )
The virtual keyboard looks and works great, and weirdly enough, after the update i can now access the full facebook website rather than the mobile version (which was a problem that arose to all n900 users a couple of days ago if i'm not mistaken). Another welcomed feature is the share option from the file manager. This allows you to share files directly from the manager via bluetooth, email, and other services.
I still haven't tried out the camera to see if there are any changes, but settings-wise, they've added more resolutions to both image and video capture as well as night mode for the two.
People also say that the email client has also improved, but i haven't tried that myself either.
Just try it out, give it some time, and i'm sure you'll start noticing and maybe appreciating the changes, as subtle as they may be.

checkout this post for screenshots of changes:
http://thetekblogger.com/2010/05/25/...e-in-uk-first/

and now you can disable flash!
Atlast!!

why would you want to desable flash?

Just read somewhere that facebook once again now opens the full site! WOOHOO... it does

Upgraded my French N900 to PR1.2 using Linux Flasher. Everything went well and all apps are now back. Couple of things that I couldn't get working:

- How do you get video for Skype or GoogleTalk calls to work? I don't see the option.
- "SMS only shows for mobile phone numbers". I still get SMS option for all numbers.

What is your experience?

I think you can disable this in the settings.

http://blogs.nokia.com/nseries/2010/...pdate-is-here/

Great news for N900 users… there’s a new software update available for you to download! (UK release today, and global release tomorrow Wednesday, May 26) .
There’s a number of changes that you can expect:


Loads of new games and apps in the Ovi Store
Gaming fans can now get their hands on all sorts of new titles including Jurassic 3D Rollercoaster, Zen-bound, Angry Birds (level pack), Sygic, Kroll, Weatherbug and GoGadget. Bear in mind that these games won’t show up in the Ovi Store until you have upgraded to PR 1.2.



It’s one for the socialites among you
Facebook IM Chat is now bundled in, and the updated email service allows you to accept or decline event invitations right from your inbox. And what do you think of video calling, allowing users face-to-face chatting anywhere.


A freshened Ovi Maps interface
This updated UI should make it easier for you to find your way around, and there’s also a change to the menu system UI, with the first level now customisable…
On top of all that, your N900 can now browse the web in portrait mode and make video calls.
Not a bad haul of new features, we hope you’ll agree!
Let us know what you think of the update in the comments section or on Twitter @Nseries.


Update: The new for-purchase games/apps won’t show up in Ovi Store until this Thursday (May 27).

you need a recent skype client on the other end & the contact must be online (and possibly also with a cam) and have video calling enabled in their client.

SMS to landlines is an optional setting in contacts

moving on- my virtual keyboard is very strange- is this now the standard? if so it is pants. i have carbon theme enabled - would that be anything to do with it?

battery life and general operational speed seem slightly improved but my media player widget still has a broken play button