A new GUI design (idea) would be moving the pull-downs from the bottom of the GUI to the left of the text entry box, with the selected picture on top of the pull-downs, as an actual picture which is clickable to change/browse other picture options.
I still prefer the clickable "drawer" which all the options hid inside of, this should be brought back and saved as a 'last used' status preference. ie- if the app was quit with the drawer open, it will launch with it open, if it was quit with it closed, it should launch with it open.
The 'future' list includes plans to handle html visually (im assuming rather than raw code), im also assuming this would introduce color/font/size/etc buttons, which would introduce a larger GUI, and for those who don't or shouldn't be exposed to the ability to use html, this perpetuates the logical need for the drawer option to be re-introduced.
a suggestion unrelated to coding (since i can't do it) ... it would be great if after you delete a post or sth the message read "your entry has been deleted" or sth instead of "your entry has been updated." i know the web version still says that so i dunno if that's as livejournal.com thing. but yeah, just in case someone posts an entry that really needs to be deleted and he can read that message as a confirmation.