Apologies for the slight thread necro, gents, but I have an update.
I picked up a Wacom Bamboo Pen and Touch tablet today, but unfortunately, the pen from that does not work with the RTAB910. The Bamboo tablet itself works okay, as an oversized trackpad when connected vis USB, but the pen isn't recognised at all.
Under Device Manage in 'Human Interface Devices' I have the following WACOM items listed:
Wacom HID Digitzer
Wacom HID Pen
Wacom Penabled MiniDriver
Wacom Virtual HID Driver
All four devices are shown as working properly, so I'm assuming/hoping that it's a simple matter of the pen itself not being compatible.
Thanks for the tip about Spiredream, dhicks, only saw your update just now.