Some sources of free ideas: http://ycombinator.com/rfs.html http://ycombinator.com/rfs.html http://ycombinator.com/ideas.html http://ycombinator.com/ideas.htm

Some sources of free ideas: http://ycombinator.com/rfs.html http://ycombinator.com/rfs.html http://ycombinator.com/ideas.html http://ycombinator.com/ideas.html http://androidforums.com/application-requests/ http://androidforums.com/application-requests/ http://www.judegomila.com/2012/01/challengeyourself-in-2012-ivelisted.html http://www.judegomila.com/2012/01/challengeyourself-in-2012-... I think you're still going to be guessing though. It's good that you recognise that as you should then move to validate that guess work somehow. Good luck!