Ive had a quick play with it and it has some great new features over the older LR -
Vignette after crop
64bit support
masking!
and others...
If you dont have the original LR and you want to try out the 2.0 beta - give me a PM and Ill send you a beta invite so it doesn't expire as quickly

maybe they will have intro pricing like they did for 1.0

to say thanks to the beta testers again!
J