[RonF]

What that looks like is hard to say as he has no papal or legal authority, but he does have veto power over who he can and cannot invite to Lambeth 2008.

It's been my understanding that membership in the Anglican Communion is defined by whether or not you are in communion with the Archbishop of Canterbury. If he declares that he is no longer in communion with the ECUSA, doesn't that effectively throw them out?

[sionnsar]

If he declares that he is no longer in communion with the ECUSA, doesn't that effectively throw them out?

Yes, it does.