Happy to hear those news: "Won't be easy, but we will do it".http://www.x-plane.com/blog/2011/12/bad-alex-bad-the-road-map-for-memory/bye bye "Xmapped out of memory" and "bad alloc" ! :)

64-bit X-Plane sounds great, but this catch doesn't:"32-bit plugins won’t run in a 64-bit app. As far as I know none of the three operating systems provides a way to bridge DLLs like this, so plugin authors will need to create 64-bit compiled versions of their plugins."

does not worry me much. they will port their plugins for sure. last but not least they'll benefit from from a 54-bit XP themselves.

I only run one other flight sim that moved to 64 bit bit but the difference was noticeable. It's a good thing.

Won't be noticeable for me - still on 32 bit here

Jason,Your move to 64 bit operating system will probably easier than theirs,