Ok... I just did a browse of linux-friendly System-On-Chips, and yes you can get some that have host USB. But the problem then becomes one of manufacture. Most are BPGA - ie machine solder only...well, I suppose we could try a toaster oven That'd leave pre-manufactured development boards - but $300-$400 is more than I think most people would stomache. Unless of course, Patrick, Mark, Peter and others got on board and it turned into a committed effort to build an Offical Unoffical Empeg Extender with an aim to make a return on the investment. (ie use the capabilities to drive other displays etc.)

The other drawback of that is the development time. My guess is that with a committed effort by such a group, we'd be highly unlikely to get anything usable within 12 months. Getting that kind of committment would probably take 6 months alone. (And then Mark's nearly back into climbing season!).

Hmm, do any of the PICs have USB host capabilities?