Mostly positive review of the Sony Reader by David Pogue. That it’s Windows-only is a real bummer for me and my go-go Macintosh lifestyle.
Update: Sorry, the “Windows-only” bit above is confusing. The software to load documents directly to the Reader is only available for Windows, but you can use any old OS you want to put documents on an SD card and then the card into the Reader. (thx, erik)