I would like the firmware updates in 3.0 for the DXG. I bought mine before the K3 was announced, though it was rumored to be coming soon. Mostly I would like the new PDF features introduced in the K3.

I don't care about the browser updates because I don't surf with my K3 in WiFi, much less would I try to surf with my DXG with lousy 3G AT&T coverage.

WiFi in the DXG would have been great, but that cannot happen as it requires a hardware upgrade. I suspect that if Amazon continues the DX line the next version will include WiFi. But my way of looking at it is that I rarely take my DXG out of the home. I use it mainly for reading technical papers and large PDFs. So I don't benefit from 3G at all and it is fairly easy and quick to load books and docs via the USB connection.