Microsoft Research Asia has cloned the GNU
Universal Software Radio Peripheral, details at the
USENIX NSDI 09 talk.
The USRP guys
mentioned it briefly on their own list.
As long as the hardware can be used from Linux, this is a good thing. If it ends up being the standard proprietary gig, I don't think it'll fly. For once, Microsoft has to compete with an incumbent that they cannot flat out purchase, so they have to throw money at the problem.
Should be interesting to see how this turns out. I have some plans in mind for the GNU USRP that mix nicely with my Cell blades.