I'm glad you find our reviews helpful . That Clie was a great model, too. Rest assured, there is only one model of the LifeDrive. Price comparison sites often get multiple listings for the same product because the retailer names them somewhat differently.
I'm not sure what "OEM package" would refer to in the case of a PDA. In computer parts it means generic packaging but this isn't a computer part. I'd hope they mean in the original Palm packaging (since they're the OEM). But you might want to ask the retailer for a clarification.