On Nate's post
today about the FCC paperwork, he conjectured:
This means that we now have what could be a 3g equipped Kindle and a Wifi equipped Kindle. That sounds awfully similar to the current set up for the Kindle Touch and K3. Both of those Kindles come in 2 flavors, with the 3g option adding to the price. I’d say that Amazon plans to continue offering 2 similar devices at different price points.
Having a pair of Kindles, one Wi-Fi and the other also having 3G would follow Amazon's pattern since the debut of the K3 (excepting the K4NT, of course).