now has a new feature that lets your preview your files without actually opening them. This is done automatically when clicking on a photo, video, or PDF and can be used on Google Documents by right clicking on them and selecting "preview." Text can be copied from here and videos can be watched.
So now the universal question, what does this mean? I think this is another way Google is bringing our information to us faster than before. Maybe they are readying Google Drive for the new Chromebook that they may be working on (but that's a completely different story). As always the answer will become clearer over time, but for now we can expect more changes in the future.