SPB PocketPlus does everything I need (quicklaunch, device monitor, application close, task switcher, etc.)
However, DevStat is a great little utility as well....and it's free!
http://www.ppcgeeks.com/devstate-t395.html
The nice thing about this was it was a today screen task manager, app launcher (with command/parameter support), and device monitor as well. Plus it is a lot less memory intensive than SPB PocketPlus.
I just need the tab support of pocketplus since I have so many programs/games installed.