Google OS

Hopefully the new Google OS is a little more just a beefed up version of chrome. But being able to run an online only OS does sound a little exciting but will everything be compatible to take full advantage of things like docs. I know when going from a windows created word document to an OSX machine certain things can get left out. So im curious to see if I created a file on their OS and tried to open it in OSX's Pages if something might be "left out".