At the end, you can do presentations with Staroffice and Powerpoint. But these little features in Keynote helps you to make really good looking presentations. The moment i saw Instant Alpha was the moment i´ve reached for my credit card. And it confirms my point, that they (my company) will have to break the Powerbook G4 out of my cold dead hands (or buy me one of this nice Mac Book Pros). Fortunatly, Sun is quite agnostic of the employees notebook, as long you don´t do your prestentation with a IBM or HP notebook (because of the difficult argumentations of it in front of the customer).