[ceejayoz]

All discussed in the article:

"Parts of our technology are built using OS X’s graphics frameworks, which offer high quality output and excellent performance... Building on OS X technologies means we’re dependent on Apple hardware for this part of the service, but we aren’t necessarily limited to Mac Minis."

[salibhai]

Ahh gotcha.. Makes sense.

[johansch]

Except it doesn't make sense to base a server architecture around this in the first place, so, no.