When Preview 3 of the Dev build was initially released, after downloading and almost installing the program crashed on me, ruined my external partition so a clean reinstall was required. When i first downloaded update 3, it was around 1.something GB but since waiting a day, and re-doing the whole process, it was only 900 something MB.. Was this due to the fact that there was a 'problem' with the first release of the update? But also noticed that some new 'bits' arnt there in this build, mainly being these new Walpapers.. not that im bothered but just seems weird how im missing them and plus i noticed the file size had changed? And also the fact i wanted the Lion! ha Any one notice the same?