Hi guys , is there any reason i should upgrade to mountain lion ? These are some features of ml that has caught my eye but im not sure if its that important gatekeeper < i download a lot so this is very important icloud < dont use it messages < i only use yahoo / msn / and skype = . I think messages doesnt incorporate skype and msn right ? btw right now i use adium and skype notification center < is this another fancy gimmick or is it really useful ? safari < im using the search bar url plugin Aside from this , does ml make the air snappier ? Can you give more reasons why i should upgrade please?