Hi Jason,

Latitude ON actually runs a highly tuned MontaVista Linux (http://www.linuxdevices.com/news/NS2560585344.html).

For those who haven't read about it, the system is a second single-board computer inside the laptop that shares the host's keyboard, trackpad, display, and wi-fi connection, but is otherwise a completely separate system with no hard drive access and no local storage at all. It does, however have internet access through the host's wi-fi or through its own 3g cellular connection. Think of it as a very thin client inside a thicker one, or more specifically as a MID with a decent keyboard and screen.

I have grave doubts that UNR would run on the Latitude ON hardware, as UNR has some pretty specific hardware requirements. MontaVista's MID stack is very slim and was developed specifically for this system. In the future, though who knows?

No, it is possible to root or update Montavista

http://opensmartpad.org/forum/21-sonstiges/38585-howto-jailbreak-dell-latitude-montavista.html