I don't believe you can browse the web freely with it.
I'm wrong, Gizmodo says there is a basic web browser:
http://gizmodo.com/gadgets/amazon-k...+on-and-questions-answered-gallery-324375.php
something called "Basic Web" browsing is available in the "Experimental" section of the menu, along with "Play Music" and "Ask Kindle NowNow."