New API’s that would be awesome:
+ Friend list API to get list of friends (users) of currently logged in user. This will enable sharing applications.
+ Jabber messaging api (for currently logged in user and/or any of his/her friend(s)). Real-time messaging anyone?
+ API to schedule execution of arbitrary code at regular time intervals, which can span > 2 second request time limit currently imposed (hopefully)
More feature requests:
+ Be able to set how long the user session lasts
UPDATE:
+ How about more than 3 apps per developer?
+ Also would be neat to be able to take *1* app and have it run in several Google Apps domains?