Bluetooth Keyboard WORKS!
They had the Motorola bluetooth keyboard 89451n or Sprint MKX8945Q on sale for $34.99 (HALF price) at BestBuy. It is the same keyboard they sell for the Xoom tablet.
I can confirm it works great, and paired right up. It has a whole series of android specific keys. It is a full size chick-let style keyboard, but no separate number pad. Works well wit the Photon on its kickstand.
I may buy a spare for my tv room at this price.