Just set this up today. Thought I would put a post on for anyone who wanted to ask questions as I couldnt find much myself on the web. It works great: Spaces works a treat and expose. The MBP handles it all very smoothly as well I need to sort out a mains USB plug instead of plugging in the MBP, tried an iphone one but didnt work. Trying to get used to all the screen space now and change my work flow. All works a treat
how much did you play for the DualHead2Go DP? does it still use the mbp's gpu or is it an active adapter?
I have a similar setup and it has worked great... until Lion. Have you tried upgrading yet? I cannot get the DualHead2Go working properly. If you have, I'd be really interested in hearing your solution. See this thread for details: http://forums.macrumors.com/showthread.php?t=1191977