I've seen a couple of posts around here where people are asking what they should work on next. Let's use this space to brainstorm some cool projects.
Honestly I'd like to see a flexible student planner/to do list. More of an agenda feel, but letting you set class times and schedules if you want (don't require it to add a class though; this is what bothered me with My Study Life since my schedules always become inconsistent). Also importing from places like Moodle would be a plus and a huge timesaver. And syncing across devices for offline usage!