* Carpool coordination. This problem turned into our next homework assignment for my collaborative work class. I'm thinking of something that lets each team member mark down their home, adjust it on a per-day basis if they'll be somewhere else, mark down which days they can drive, and plot optimal routes. Extra points for a mobile app that can read my GPS coordinates and tell me where to go. More points if it balances driving responsibilities well enough that nobody feels taken advantage of.

* Too many notifications. I have to login to a half dozen different systems to keep up on what's happening. That's too much. There are notifications I just want to see, some I want to add to my todo list, some to my calendar, some I don't want to see again. A single-app solution for all of this would be brilliant. Email is too heavy: I want notifications, not correspondence. Bonus points if it's on my mobile.

* Some way to extract the most valuable points out of a meeting. A possible solution might be a 'real time digg' that lets people vote speakers up and down when they agree or disagree with their point. Correlate that with a copy of the transcript and emphasize sections with higher scores. Possibly two-dimensional voting for 'We need to remember this' and 'I agree with this'.