On the eve of T-Mobile's big "uncarrier" event scheduled for Tuesday, we're hearing substantial rumblings about how Apple may be a part of tomorrow's major media event.

Although Apple and T-Mobile aren't commenting on the rumor (no surprise there), Apple's flagship device will be the focal point of news revealed by the carrier tomorrow.

The exact nature of the event, however, remains mysterious, as evidenced by the signature magenta media invitation which reads: