I love this idea. Good implementation too, the only thing i'd change is:

1) Add an overview page with a much bigger list of ideas.

2) Decrease the font size a bit. I could only see two or so ideas at once on the home page.

3) Perhaps add a voting system of some type?

You also might want to seed it with a bit more content, otherwise you'll have a hard time breaking out of the chicken and egg problem (that's what ended up killing me).

EDIT: I'd also add some indication that you aren't going to tweet as me.