With all the new e-readers hitting the market, it can be difficult to determine the differences among them. The Chamber Four blog recently featured a review of all the newly released e-readers. The review includes the new Sony Readers (PRS-300 and PRS-600), Bookeen Cybook Opus, Onyx Boox, Cool-er eReader, Ectaco jetBook, Astak 5-inch EZ Reader, and the Astak EZReader.
The Adobe Digital Editions website also has a listing of all of the e-readers that support ePub content and utilize unprotected or protected Adobe software.