Finally with RUP#2 for OM12 SP1 this is solved:
While attending MMS 20123 I heard some whispers going around that the team at Microsoft responsible for the Widgets is pushing hard to solve other knows issues as well.
I know some of these people personally and I must say they work hard and are dedicated to the job. However, like in many other companies, the agenda’s, budget- and resource allocations don’t always match with other priorities.
But now it looks like it these are all aligned now. So there is more to come! Stay tuned.