I hope they add support for larger sized maps at some point- maybe in the x64 version since that should be able to utilize more than about 1.5 GB of RAM without crashing. And yes before someone says something I know that the theoretical limit for 32 bit adressing is higher, but 1.5 GB is closer to the real limit when you account for video-ram adressing and other things.
I'd love to throw the 64 bit version on the box I put together for running plasma simulations. I wonder how big of a map it could handle with 12GB of system RAM, 1 GB of video RAM, and 4GB of video RAM on the Tesla 1060. If only it could use the tesla GPU and vRAM for something like AI calculations. Sadly I think MATLab and Maple are the only pieces of software that will use my GPUs to do math not involving polygons and particle effects.