I really like the UI colors!
Good to be able to autopost to Twitter & Posterous at same time (some Twitter apps also offer that).
Text window too small. C'mon, please, you've got that entire first screen hardly being used. Don't be stingy with the text box. Give us at least 2-3 lines of space so we can see what the hay we are typing. Sent a typo in first msg 'cuz can't even see full sentence!
Note Font needs to be bigger & blacker.
Need better instruction re what ID Posterous requires, as they don't use User Names, but instead must use email addy.
Needs Settings for multiple Twitter & Posterous accts (like Twitter apps have), so we don't have to log in & log out & log in for every different blog or Twitter acct. Otherwise, I might as well just use email or Twitter apps.
(Later may want to add other social sites such as Amplify, Blogger, Wordpress, etc. as it would be great to be able to zap a pic to all of them at once w/o having to open up email.)