I'm in stealth mode for now and not quite telling yet.
But if you want to be the first to know when I have something to play with, I shamelessly built a LaunchRock page for my new startup. I realize it's a bit goofy to build this, but it greatly simplifies things.
Go to my LaunchRock page and type in your email address: http://startup.gaborcselle.com/
Thanks to hendrik for the suggestion.