The new card is capable of holding up to 1,000 songs, 2,000 high-resolution photos or 20 hours of MPEG4 video. It’s compatible with Sony Ericsson’s latest generation of handsets such as the Cyber-shot and Walkman series.

“This new card, and others, are reshaping the wireless landscape,” said Norm Frentz, director of marketing for SanDisk’s mobile consumer solutions division. “This is the threshold at which mobile phones provide enough capacity to become the user’s all-in-one portable music player, camcorder, photo album and video player.”

The 4GB M2 card will ship to OEMs in May, and will be available in retail stores later in the year. Pricing is not yet determined.