This move should temporarily boost traffic at iMeem, which finds itself competing for the ability to premier new releases with rival music services like iLike, MySpace, Rhapsody, et al. Last week, for instance, MySpace got bragging rights over “Chinese Democracy,” the sort-of-long-awaited album from Guns N’ Roses.

But it’s unclear whether these premieres actually help Britney or her label, Sony’s (SNE) Jive: Few of the visitors to MySpace’s GNR page stuck around to listen to the whole album, and hordes of GNR fans don’t seem to have flooded Best Buy (BBY) stores, which have an exclusive on the disc.

But who cares? That’s tomorrow’s problem. For now: Free Britney Spears!