They jam packed sooooo many new features in the first Lion DP, and pretty much took out the vast majority of them (Slider buttons, local Time Machine saves, default Dock indicator lights off, etc)
A lot of the announced features for Mountain Lion are underwhelming to me. This is a feature I want. I'm wondering how many more unannounced changes will be things I'm interested in rather than the stuff on the new features page Apple general has for each version of OS X.Whoa. This is incredible. Automatically keeping everything without asking me when closing a document is incredibly frustrating on Lion in some cases. I'm waiting for ML even more now!