From what I know of it, each tab opened runs in a separate process. Also, supposedly, certain extensions can create their own processes too. I guess it is kind of like an Anti-Crash preventative measure. If one page causes an error, it doesn't have to close the browser completely, just the tab.
I'm not 100% positive, but that's what I have come to know about how it works in Chrome.
now that i think of it, you're right. is there anything else on there i dont need? tough day, cannot get printer to work anymore. (see other thread)
Not that I see. There's not a lot of extras there, except the itunes stuff. Nothing really out of the ordinary in your list.
You could try the performance tutorial that brink posted: Speed Up the Performance of Vista=Performance%20Maintenance
Chrome befuddingly enough launches a new process for each page opened in the browser...
This is where it's phony "speed" claims are exposed.