Thanks to Olzeke, this has been updated and checked on multiple-*nix systems. BASIC support for Linux has been updated for the new ARM Stamp. Files download here
The history of Linux support in the Forum
I am still looking for some help from the user community for native Mac support.
BASIC tools are written in Tcl which run natively on Mac's Wish. The ARMbasic compiler compiles and runs on the Mac. But last I checked the version of the C pre-processor for BASIC was not linking on the Mac. For someone familiar porting Linux code to the Mac this should be a simple task. Contact me and I'll happily compensate you for your effort.