whackinski,
I've flown Greg's Micro Flyer indoors. I don't think he's had the courage to try it himself, and his MF's battery was sausaged.

They're pretty fast. I'm able to do figure 8s with mine in a regulation size basketball court gym (like the colleges/pros play on).
My next plan is to buy a second MF, a spare wing, and replace the stock receiver with my RFFS-100 receiver, and join the two wings together to increase wing area. The plane runs on a single-cell LiPoly, has essentially the same motor as the RFFS planes, and has a magnetic actuator. It should be a plug-n-play operation.