The point is IMO (and as I understand, You also mean it) to gather around (as Open as it's possible), highly adaptable system. It seems that Meego Core, with some open UI (I like idea of it beign Cordia, but we can live with any other good choice, if, another time, something pop-up) is best solution now, and it doesn't seem that something betters is going to "happen" in at least few years ahead.