>Can anybody tell me if Microsoft did do this (unix version of VFP) and if so what level is it at currently (3.0/5.0/6.0) in terms of features and who's unix does it currently run under, SCO or HP or whatever ?

There was a Unix version in 1994 for FP 2.6, but not VFP. And I'll bet you that there will be no VFP for Linux for a long time (probably ever, but noone can really tell).