First off, we're sure you're already aware that it will be powered by Linux, for you to enjoy the internet world to the hilt. So obviously, it allows you to browse through the net. But that, my friends, is just the tip of the iceberg. With individual user identities for browsing and online play, you'd simply have to select your profile, load up your personal preferences (bookmarks and individual friends lists included), and voila! Jumping from Google to wherever else becomes hassle-free.
It really looks as if the PS3 is out to be the one-stop-shop for all your gaming and online needs. Let's just wait and see if it could actually deliver all these goodies.