Paris-based MobiPocket established itself in 2000 as a format for multiple PDAs and, after an initial period of relative inactivity, is now capitalizing on the proliferation of wireless platforms that can serve as eBook readers. Through a single file format and multiple reader software, it supports Palm OS, Symbian, Pocket PC, Microsoft SmartPhone 2002, Franklin EBookMan, and other portable device platforms as well as Windows PCs. (Although MobiPocket supports Palm devices, OverDrive will continue to support Palm Digital Media format as well.)

With this announcement, OverDrive becomes the second repository of MobiPocket-format content available to retail websites; the other, eBookBase, was launched in partnership with Franklin Electronic Publishers, MobiPocket's part-owner, last month.