Actually 0.86 (the version on the website) already does that, if you hold down the option key as it starts. That's not good interface, granted. The forthcoming version 1.0 will go full-screen by default.
I'm having a little trouble with my development box (a platinum G3 desktop), but when I get that worked out I'll be fairly close to the 1.0 release.
Thanks for the note!
- Aaron