Will xda Orbit 2 work on 3UK Network (HSDPA)??

I have been considering an Orbit 2 for use on 3UK Network, but does it work
on 3? I want to use it PAYG initially for use as a modem and for HSDPA data
rates. Any reason for it not working on 3? Do you already use one like
this on 3 Network?

Also want to use it for Skype too.

Thanks