Dude HP Prime- 50 G in my house.

[spinkham]

It's not exactly WiFi, it's a proprietary wireless link. The chipset used was mentioned somewhere along the way, I think maybe it was using a NRF24 series chip.

I don't think they've ever been exactly clear why the DataStreamer doesn't work, but I think there was some security problem with USB OTG in the old device that was fixed in the newer version by substituting in a different USB chip.

If you don't care about wireless or Datastreamer, it's a fine machine. It's still the only version available in the US. My guess is they think they're not as likely to take over from TI here and are dumping us all the old stock while they roll out the new ones to other markets. ;-)

Anyway, there are very few differences in the hardware revisions.