I'm running YDL 3.0 in an upgraded Pismo 900mz 1GB RAM quite nicely, OSX runs at 900mz and YDL "sees" only as 550mz, but runs really fast and smoothly. I prefer 3.0 to 3.0.1 because I had issues with sleep and sound with 3.0.1 and my Pismo, but none with 3.0 for either.