Nice project!
I tested it with Windows XP Home Premium but the results were bad. I was just able to run 5 VM's at 768mb ram each (the games were crashing with 512mb ram; Setup: i5 2500k @ 3,9ghz, 8gb ram, no ssd). Back when LoLEtal was updated I remember using 8 VM's at something between 256 and 512mb ram while operating.
I will try to get a light version of xp running. Is there anything removeable from the LoL folder that may decrease the CPU usage? Hopefully I will get 5 VM's working at 512mb ram while being able to operate as usual. I'll leave Pandao Media Booster out and report with loading times. Right now its about 1-3 Minutes @ 1gb ram using a crappy version of xp, compared to 5-10 minutes using 512mb ram with many crashes (which is horrible compared to a lengths of 7-8minutes).