Right now, the Norton Utilities Public Beta for OS X is a waste. It doesn't feature Speed Disk so you can't optimize, and Disk Doctor doesen't seem to be 100% there. It found several errors on my HD that it was unable to fix. Funny, Norton Systemworks 1.0 had no problem fixing them.
I really hope that Symantec isn't dropping Speed Disk from the Suite of tools. It was the main reason I used NUM in the first place. If it's history, I'll have to either look at Drive10 or TechTool (when it becomes available for OS X)...