re who does the stripping of titles, I think it's probably formally/officially UCI but it's like a royal ascent thing - UCI are bound by their agreement with WADA and have to respect the decision. So practically it is USADA that strips the titles. IF UCI refuse to recognise the sanction, they themselves face sanction and probably expulsion from the olympic movement by the IOC. So no cycling at the Olympics Games.
Another thing, re Armstrong's appeal. My understanding is that he can't. By refusing the arbitration process, he has effectively said he does not contest the charges or - to rephrase - he accepts the sanction. There's no route to CAS. You can't appeal a decision you've effectively agreed with. As I said earlier, I reckon he's painted himself into a corner.
If he tries the court route, they'll just bounce it saying he hasn't exhausted the options made available to him. Again, you can't complain about a process you haven't taken part in.
He'll continue his fight in the court of public opinion, and the tide will slowly slowly turn against him until nobody cares. And he'll still protest his innocence. It's the one thing I've never been able to factor in to my thinking - Armstrong himself. Some say he's a sociopath, that he'll never admit because he doesn't believe he's done anything wrong. I've no idea about that but there'll no doubt be bio-pics in time that explore his personality. It'll be something to watch on a rainy Sunday afternoon.