Ian: I'm extremely happy with my Paperwhite. They're not yet available outside the US or European market yet and I'm so happy that Julie helped me to get hold of one. No the Kindle screen isn't "paper white" all the time, it's only achievable under specific built in and ambient light conditions.
Light weight; Screen is bright and crisp in any lighting situation (though you may have to play with the built in light's settings; No need for additional lights or covers for reading at night; Adding a smart cover gives you instant access to where you left of (no SO version; No more spooky dead...
Not fully available internationally