Having built LinkPeelr (http://linkpeelr.appspot.com) and Turn-O-Phrase (http://turn-o-phrase.appspot.com) I now find myself in a state of giddy excitement about what to build next.
Plenty ideas and confidence that I can do it, just need some feedback about what you think is viable as an app (setting the business behind it aside for a moment).
What do you think?
EDIT: This is not a web app.