personally, i think it is sad that essentially all desktop environments are in the process of being dumbed down. it's all about eye-candy (way more than usual -- just look at address book/ical in lion), big buttons, and facebook/twitter integration. why? i mean i get it on some level, and i am sure a lot of newbies (i.e. my mum, girlfriend, ...) will think it is awesome that everything looks like an iphone homescreen, but what about the power users? at least let me revert back to the "old style" if i so choose (i don't care if it's deeply buried in the registry or only accessible via some random terminal command; if it's there, i will find it).
i don't even want to touch lion, let alone mountain lion, because i feel like options are being taken away (what is this automatic versioning business? i'll use git or svn should i really want that. let me choose, dammit) from me and it all rapidly moves towards the lowest common denominator :(