It seems as if it was yesterday when Supermusic and Free Music Downloader hit the Windows Phone Marketplace. We have now been told by the developer that a Mango update for Supermusic has been submitted to Microsoft for certification and should be available in the coming days.

The music download app allows you to download music files from a wide variety of free music sites. You can create playlists from the downloaded tunes and the Mango update adds background music play and downloads into the mix.

The list of apps being updated continues to grow and based on Joe Belifiore's earlier tweet, Fall can't get here quick enough. There is a free trial available for Supermusic and the full version will run you $1.29. You can download it here (opens Zune) at the Marketplace.

Free Music Downloader, the free ad-supported version of Supermusic, is expected to be updated to Mango sometime next week. You can find it here at the Marketplace.