Waiting on an ultimate Scheduling/To-do/List manager app, and a stable finance app that has the speed of entry of an app like Accountr, the stability of an app like Checkbook, but the bells and whistles of SplashMoney.
Also, a Rotten Tomatoes app that includes just the Tomato meter, the average rating, the synopsis, and the general consensus for movie. Current movie apps include just new releases, and looking it up on the net takes too much time and battery life. I wanna be able to quickly look up that info while standing in a video rental shop.
I saw an app for Korean 101, a similar app for Japanese would be great (I've got vocab learning apps and dictionaries, just need the know-how to use all that vocab and kanji I'm learning).