I don't currently have any suggestions for ideas because I have too many projects un finished.
I would suggest though as advice is to take something short and addictive and turn it into minnie games. Good place to go is online game arcade type places. Take simple play mechn and turn it into other games.
Like that monkey ball game featured in newsletter 18 is fun and novel.
Its good to come up with your own ideas, and then maybe ask us what we think, and perhaps it will shape up into something interesting.
Cheers
IDIC (Infinite Diversity Infinite Combinations)