I just recently upgraded to Lightroom 2.0, and I haven’t had a whole lot of time to play with it yet. I actually learned a lot about it’s new features from reading a review, of all things! The most jaw dropping tip was that it supports 64-bit mode but when it’s installed the preference defaults to 32-bit mode. You have to uncheck that option if you want 64 bit mode. Excuse me while I scream OMG and uncheck the box! Thank you, Adobe!

You can read the whole review here.