Very informative review, particularly the part regarding Swift towards the end, although I did feel like he was going over the changes in a perfunctory manner as opposed to the Mavericks review.<p>Anyway, it did help me know what to expect in Yosemite so thanks John.<p>I also discovered the "purple" full screen button from yesteryear - I much prefer that to the fullscreen arrows in Mavericks, and dislike the new default "FULLSCREEN" behaviour of the zoom button. Fullscreen makes the menubar and all that sits in it (MenuMeters, clock etc) useless. On a laptop, the indicator about the battery is kind of important to me, and I don't find the clock distracting or require it to be removed in order to help me read text on other parts of the screen. I think it is a foolish move.