Summary Box: Muve attracts 200,000 subscribers

THE MILESTONE: Muve Music, the unlimited music plan offered by prepaid cellphone company Cricket, has doubled the number of subscribers to 200,000 in the past two months.

HOW IT DID IT: Cricket’s music service has grown rapidly since launching in January, partly because it bundles the music service with customers’ regular cellphone bills and eliminates incremental charges for downloading new songs.

USAGE PATTERNS: Users on average download more than 400 songs per month and listen to music two to three hours per day. Songs cannot be transferred off the phone, but can be listened to outside of cellphone range.