RobertB,
I own a Sony PRS-505. Although the Astak 5 EZ Reader Pocket PRO eBook reader supports 20+ open formats, it cannot open and read my many .lrx formatted eBooks.
I must say though that the 5” EZ Reader looks interesting. But I cannot afford another reader right now (or justify spending the money for another reader).
I would be willing to “test” one for you and give reviews to the company too! “Slate Blue” or “Maroon Lagoon” would be nice!