MacRumors.com

In what may be the highest-profile claim to date, the Wall Street Journal (paid subscription required) is chiming in that Apple will be announcing their cellphone "as early as Tuesday." The phone reportedly would reside on Cingular's network.

Cingular in November announced a mobile music service based upon Microsoft's WMA format and a subscription model. It is presently unclear how this service would interoperate, if at all, with Apple's rumored phone.

The Wall Street Journal has been extremely reliable in the past, having been the first news outlet to predict Apple's switch to Intel chips.