I like it, with the following exceptions:

- Titlebars? These seem a little out of place. I understand a menu target needs to be somewhere but it's pretty hard to forget what app you're working in. Use the space for more status icons!
- Modality inconsistencies. When you have the little status box saying "connected to..." and another that says "launching..." and another saying "updating..." why are they all stacked on top of each other? Shouldn't they be like GTalk or Growl and start at the bottom of the previous one, so you can actually read them? Better yet, why are they modal at all? I find it very weird.
- Non-movable windows. Add the hack to get movable windows and the default stuff all falls apart and originates somewhere off the top left of the visible screen. I'd love to run something like DAs on Maemo apps. A mini-calculator or stopwatch over top of a document.
- Native rotation! I'll betcha this is coming soon.

I like the increased finger-friendliness... it often translates to user-friendliness, because it forces the developers to simplify the presentation more, and think a bit more about UI guidelines. I'm still wondering where the best finger-friendly todo list is...

Other than that, it's not bad. I like it.