One of my major pain points with Microsoft is the (often needless) interdependence between their proprietary products. This has the effect of MS spreading like a cancer through any org that carelessly takes on any of their technology. So far, no part of their much lauded "openess" put even a chink into this. That makes me very skeptical of their sincerity.

I believe we should not get ahead of ourselves cheering Microsoft on. So far they have not shown that they improved their overall behaviour. They just have gotten better in marketing their moves to the likes of us developers.