But will the Nokia 770 support a hub?

Does the device work in USB host mode?

The device itself works by default in client mode. However, by for example reflashing the device with --enable-usb-host-mode parameter in the flasher program, it can be set to function partially in the usb host mode. It however does not work without a powered usb hub and additional cables in between since the 770 can not supply power to through the usb connector. The flasher program can also set the device to usb host mode without reflashing retaining the original rootimage, try this: connect the device with usb cable and command flasher just
$ ./flasher --enable-rd-mode --enable-usb-host-mode
source : http://maemo.org/maemowiki/Frequentl...6f856b3c74595f