First off, very nice app Daniel.

My thoughts:
- Feature request: would like to see avatars...if you dont like, maybe give the option to enable/disable them
- Feature request: would like to see a 'more' button...being able to read only the last 20 tweets is restrictive
- Feature request: would like the ability to modify the theme/colours...blue is not my first choice
- Bug: when double clicking on tweets with extra long links, it hides the 'dismiss' button, pushes it out to the right
- Bug: Witter notifys of new tweets, but also notifys when user posts own tweet as new tweet...seems a bit redundant
- Bug: when viewing friends, Witter struggles to display all info...i currently displays a friends name and latest tweet, but if thier last tweet was quite long, it wont all display properly in the friends section
- Bug: kinetic scrolling jumpy and slow, not fluid, smooth or fast

Either way, ya doing a great job.
Cheers