I have a Belkin F5D7632-4 which I am no longer using. The hardware page lists the F5D7630 as untested, and the F5D7633 as WiP. I am not sure how close this is to either of them.
here are all the details on the outside:
ADSL modem with wireless G router
model # F5D7632-4
FCC ID: K7SF5D76314
if you want me to pop the lid and take a photo I can.
I'd be very happy to see this go to a developer for help in porting.