MusicGremlin is one of the latest Wi-Fi enabled music players in the market. The $299 device comes with an 802.11 wireless connection and carries 8 GB of storage or about 2,000 MP3, WMA, or WMA DRM worth of tracks. At $14.99 per month, subscribers get access to MusicGremlin Direct’s 2-million-track music library directory, which is saved and invisibly updated to the gadget. Gremlists — preprogrammed weekly lists of 10 songs in different genres, including hits, rap and classic rock — are also available to subscribers. Sans a Wi-Fi connection, Gremlin owners can create ad-hoc networks to exchange songs among themselves.