It's nice to have cross platform ability with BlitzMax but I am afraid after a while it'll all end up on a Windows platform. One does not have to look further than this forum where, after the BMax release it was still pretty quiet until the beta for Windows platform was released. Check the number of posts clearly posted by Windows users using BMax on Windows vs. posts by Mac users using BMax on Mac. Numbers tell the real story...
Don't get me wrong. I am all for Mac, Linux, Windows development but as I already said, it looks like it'll all end up on Windows only.
Even so, most of those windows coders will still take advantage of the cross platform option when releasing their software. Like I plan to.(Don't have a mac or linux.)