WSJ's sources say Verizon won't be announcing a new iPhone model, just a version of the iPhone 4 that will play nice with Verizon's CDMA technology.

That might explain why Apple isn't making the announcement itself.

WSJ's sources aren't sure when the phone will be available, but other sites are hinting it may be late January -- which is a more than six months ago.

Boy Genius Report reports that Apple is from February 3 to 6. My PC World colleague, John P. Mello Jr., earlier this year that covered the release of the iPhone 4.

It looks like Tuesday's announcement may be a pretty sure thing. What isn't certain is how the release of Apple's killer smartphone will affect sales of other devices on Verizon's network.