OK, got mine. Clip is indeed excellently strong, and it holds my N800 rather snugly. It's a really nice case for the tablet.

Provided you've got room on your belt for a second one, these also work well as a case for an iGo Stowaway keyboard, or (with serious stretching, but I think no risk of harm) for a Black and Decker CP120B 20W power-pack (battery with USB and 110V inverter outputs), with a wall-wart plugged in and powering something. Alas, the N800's power jack is covered while in the case, but for powering GPS/speakers/etc...