Oh, it ran just fine with 1GB, but the Apple store finally got some Mac Mini RAM in stock, and now this little machine just screams. 
Also, it’s nice to see the Avert Fate demo running in 1280x1024 “Fantastic” mode without hiccups. 8)
It’s funny that a few weeks ago, I was so looking forward to the Unity3D Windows release, but I’m liking my new Mac so much that, now that 2.5 is out, I hardly ever open the Windows version.