got the iOne usb wireless keyboard on my n800 using USBotg adapter. it's a compact keyboard with pointing device built in. Worked perfectly on my n800 using the mouse support patch (USBMouse.deb)

in PenguinBait's KDE, everything work as on any laptop



also tested the Solidtek Usa 540P with touchpad and all is good



then I got a Solidtek Super mini keyboard-only device (8" wide)



and I have yet to receive the USB Playstation2 keyboard but was reported working ok by another user (available at Toy'r US in the USA)