If you are looking for an LCD reader you might be interested in this:
http://www.jr.com/augen/pe/AGN_EBA701/
I don't know how well it works, but I have one on pre-order. I'm currently using my iPhone to read at night when I don't want to have a book light on, but I really want a larger screen.
I *love* my PB360 but it doesn't have wifi. What are you looking for the wifi for? If it's just to transfer/buy books that is easily done with a computer and side-loading via calibre. I have had Kindles and Sonys and never used the wifi/whispernet.
-Marcy