Warbil,
That's a good question. I think part of the answer lies in the fact that the TCG made the estimate long ago that the enterprise & govt. sectors would be addressed first, simply because of the obvious need and investment involved for implementation. Therefore, whatever infrastructure exists today is mainly directed at those two sectors that have the ability (in-house IT) to manage their networks. The consumer is still on the back-burner. However, if you purchase a PC with SED per TCG standards at least you won't have to worry about sensitive information falling into the hands (unless those hands have an electron microscope, savvy and $200,000 to break their way into your TPM!). You'll be losing an expensive brick.
I don't know much about the Open ID program but my assumption is that Wave is becoming a little impatient about the ability for TCG standards to address the consumer population. Their entry into the market place as a certifying authority may be an effort to jump-start it, even if that isn't occuring yet. It's really an example of why the ubiquity concept really is important. Until there is widespread use of hardware based trusted computing it will be difficult to really use it properly. If you tell your computer(via the TPM and a certifying authority) that you will only accept data from authenticated sources, yours will be a pretty lonely PC! In other words, the consumer, as originally envisioned, will be the last to benefit from this tech. (Not to say that that couldn't happen relatively quickly, once we see widespread adoption by enterprise/govt).
I hope this sheds some light on your question, and I'm sure that others can do a much better job.
Cheers,
Svenm