From John Gruber Daring Fireball: N92. He's well-connected to what's happening at Apple and his instincts are usually right on the mark.
engineering-wise, the wheels are turning on N92, the CDMA variant of the iPhone 4. It’s certainly not in production yet, and hasn’t reached DVT status (device verification test — like Gray Powell’s infamous stolen unit), but it is, a few little birdies claim, at EVT (engineering verification test). That’s one step below DVT, which is one step below production. So it’s right about where you’d think it would be if it were scheduled to go on sale in January. The CDMA iPhone is no longer a cold storage, keep-it-alive-just-in-case-we-need-it project.
That doesn’t make it a sure thing.