Maybe, maybe not. IMO, capabilities-based systems are all around us these days, just not in a completely pure form and not in the way most people expected (it's

Maybe, maybe not. IMO, capabilities-based systems are all around us these days, just not in a completely pure form and not in the way most people expected (it's at a higher level, that is, in the way apps are being built on web APIs). I also note that Microsoft built a capabilities-based OS (Singularity - it's open source, have you considered building on something like this?) and that one of the most important modern contributors to the space (J. Shapiro) now works at MS Research last I read. Given his lifetime interest and work in the area it's not a stretch to imagine what they may have hired him to work on.