I was tempted by those USB2VGA adapters, but between uncertainty over whether they'd work and the higher resolution anyway, I went with the USB2VGA2; I couldn't find anything about chipsets, either, though the driver is identical AFAICT.

The USB2DVI is also interesting, but different drivers means it's probably not the same chipset, and it costs even more.

That station looks interesting. The video conditions match the USB2VGA2, so I'd bet that it's the same chipset. I'm not sure how likely it is that the audio could be made to work, but the ethernet's reasonably likely, and the hub + VGA would be dandy...

But the 6-in-1, with no audio or video, but with PS/2 mouse and keyboard (who doesn't have a pair of those kicking around somewhere?), parallel, and serial, in addition to the RJ-45 and USB hub, is even cheaper, and also interesting as an actual usable dock for desktop use of the N800; especially if its connector was glue-ganged with a power adapter, and perhaps one of your audio splitter cables for speakers and desktop mic.

I'm not ready to jump for either of those at the moment, but they're both possibilities in the future. (Right now, I have one of those spider hubs modded and working, and am waiting for time to do a tidy job on the other one with pictures online... USB2VGA2 is on the way, so I don't have all that much use for either docking station, nor all that much time for playing with it.)