n800-IT-OS-2008 with self-built none OTG cable:

i`m using an logitech full sized keyboard without external power (without any dropped characters and even the right leds switch on if you press LOCK-buttons; num-block, F-keys, ctrl, super-/windows-key and "right-click-key" are working fine, too)

a friends mp3-player and a digi-cam (both self-powered) also auto-mounted and filemanager popped up to show the files

i need a POWERED usb hub for:
-a card reader (CF and MMC cards mount fine, transfers real fast and even filemanager pops up and shows the files.. other cards not tested)
-another keyboard (i think it`s from hama) with integrated usb 2x hub; disassembled it and found out that the usb-hub-ports are mounted on a little board where some other keys (play, stopp, volume +/-) are mounted.. i assume that this board/keys/hub-ports need too much power to run without powersupply

now it`s even more fun with the ITs