1. Macs cost money. The dirt cheapest one is $600 but it doesn't even come with a keyboard or mouse or display. On top of that it's slower than my current PC which is 2 years old and I'm not even sure it will run torque.
2. PEBKAC. Macs are not more stable than PCs. The only reason users can claim such is that they never do anything on their mac besides surf the web and run iTunes.
3. I'm done working on this iteration of AoT. The next iteration of AoT will be post-Blockland and will be on TSE. TSE does not have openGL support yet (and thus no mac support) and it won't until at least mid 2007.