As soon as Toorkild reclaims his rightful title, I'd like to see you get back into nanos. You've always been good at thinking outside the box, and the nanorumble sorely needs that right now.
I found that in nanos I didn't have enough space to do anything original. See my conversation at the top of this page with Mike (author of LittleBlackBook and Moebius). Anything less than micro, and sometimes even micro, seems like it isn't something which was specifically designed to perform a specific purpose but rather an amalgamation of code snippets which just so happen to perform the stuff we're generally looking for. There isn't room in nanoland to actually use any of the ideas that I have about how to improve something. But I'm willing to give it another try =)
I know how you feel. I worked for weeks trying to come up with something original for Foilist, but almost all good movements had already been taken. I think that the current nanobot paradigm is nearing its end. If you really want to do something revolutionary, I would suggest trying to code a bot with Jasmin.
I look forward to your next game-changer, good luck.