Yes very similiar to the PSP's but with a few twists. Check out the 3 min long video.
http://www.aeropause.com/archives/20...le_interfa.php
Also what is interesting is how they compare PS3's interface vs. The 360's interface. Keep on reading towards the bottom for that.
*EDIT*
If its all right with everyone I made this the official PS3 thread. I got ALOT of stuff I want to post so I dont wanna make like 10 million new threads for each thing. BTW I will add alot of things tommorow and as I get more time.