CTIA 2007 — The music phone battle is heating up, AT&T (formally Cingular) has announced it will be giving away 1 year of unlimited Napster To Go service ($180 value) with the purchase of a SYNC or BlackJack. The subscription covers unlimited playback of the over 3 million tracks in Napster’s catalog.

AT&T will begin this deal on April 1st. It’s also available to existing AT&T customers if they sign up for one of the bundled service packages (covering home phone and broadband). The SYNC is currently priced at $49.99 after rebate while the BlackJack rings in for a more hefty $199.99 after rebate.

In a related move that also occurred this afternoon, Sprint Nextel announced lower pricing for its wireless music store.