About six months ago, I put up an HN post asking everyone about a problem they want to see solved. It sparked a lot of discussion and a lot of great ideas. So here's edition #2.
Name any problem: technology, politics, cooking, world peace - whatever bugs you or pops into your mind.
Original: http://news.ycombinator.com/item?id=442571
I also want a land based bell in my house to ring if my cell phone is within 50 feet of the house (in another room, in the car).