Just installed the April CTP version of this amazing product on my new dual core 2.0 Ghz/2Gb laptop.
The first step was to make it look like Vista
Next thing was to disable the enhanced internet security configuration from the Control Panel. Feels good! Looking forward to go through the labs to get into IIS7.
Performance? I will add the SQL Server and Visual Studio and we'll see. It is pretty fast right now.