Flash & URLs search engine friendly

[peptobismol]

Notice the URL on this site as you move from section to section.

http://ge.ecomagination.com/smartgrid/#/alternative_energy

How are they doing this? The swf is the same btw.
I've been seeing a lot of this lately.

Thanks.

[peptobismol]

I found it.
The answer here.

http://www.asual.com/swfaddress/