Sweet! This is the best news I've heard all week!
Now we just need to see pictures of what it looks like (hopefully it's based on the housing sculpt of the 8700g, as that's the best looking version, IMHO) and confirmation of the features. Since the other versions support 2.5g data via EDGE and 3g data via UMTS and EV-DO, hopefully the Nextel version will work on the WiDen network so we can get better data transfer rates.
Oh, and of course, RIM and Nextel need to stop farting around and ANNOUNCE THE RELEASE DATE!
And to all the doubters, who tried to sound the death knell for iDen and BlackBerries on the iDen network, I have just one thing to say: IN YOUR FACE! I TOLD YOU SO!!!