My favorite Maemo apps (excluding tweaks/hacks/closed source) are:

FBReader
MyTube
VNC Viewer
Vagalume

Some of these could use some UI/usability polish though. Not sure if hildonized ports like FBReader and VNC Viewer count.

I added Xournal to the list on the Maemo.org wiki.

canola
maemo wordpy
advanced backlight status bar
mathjinni
grandcentral dialer
rtcomm2
and of course don't forget the browser! it would be nice if more websites made n8x0-friendly sites, just as they have been developing iphone-specific ones. mimicing the iphone user agents has been a decent workaround for now, but the aspect ratio is all wrong for most sites

maybe a tweak program...kinda like ubuntu tweak

FBReader
GPE Contacts, Calendar & Todo
Maemopad+
Canola2
Maemo Mapper
GPXView
Garnet VM

qgil: Regarding your comment about scaring us off. Up until this week, I had not used my maemo.org account for anything. This week, I made a conscious decision to file a bug and vote for a few that I saw after upgrading to Diablo. The recent activity on Maemo's 100 days, community council, etc has started me thinking that Maemo.org is more important to the tablet's future than I had thought. For instance, instead of complaining about a bug here on itT, which can be useful I guess, it would be better for users to look through the bugs on maemo.org and vote for them, or file a new bug. I think it requires a bit of a paradigm shift - at least that is how I perceive it. InternetTabletTalk is an important venue, but so is Maemo.org - I didn't make that realization until this week, and perhaps others on this forum are in the same boat. If that is the case, then the rebranding process that maemo.org is going through may alleviate this mental block. Some thoughts from me to you...

I am not a developer, but owe them a lot, and I'm certainly not shy, so I just went in and added my favorites to the wiki. That's what you wanted us to do, right? As opposed to posting our lists here?

Existing top ten:

1. Browser (no one has listed this yet??)
2. Rapier (I'm the 1st to mention this too, but it is one of my essentials
3. Pidgin
4. OMWeather (again not mention yet, but who doesn't use this daily?)
5. Canola
6. Mplayer
7. GPE Summary
8. Gnumeric
9. Notes (yes, I use it daily)
10. CrazyParking (to pass time waiting in lines, etc)

What I'd like to see now:
1. GUI for cron jobs - Doesn't need to be slick. Cron is cool enough already. I even have a proposed name for it: "Cronguint"
2. Can this one be forward ported to OS2008? Or something like it?Webcam

i see no reason to add my own list....we need to start ...maybe a poll....that would be good

I have sorted the projects listed at https://wiki.maemo.org/Task:Remarkab...unity_projects

If someone can move proposals made here to that wiki page, that would be great.

imho there is no need for polls, since polls don't give reasons per se. If it's about the ranks we have already the Best Rated and Most Downloaded at http://maemo.org/downloads

This exercise is precisely about selecting and discussing what are the top class community projects and why.