We normally wouldn't be so bold - but we're thinking you might want to keep track of the things you watch in case you want to watch em again. This won't hurt a bit...
When you login using Open ID, we'll remember the login information that we need to remember who you are - specifically we need to know:
Some people really like Open Id - others don't. This is our number one support feature, by a mile. People tend to forget rather quickly which service they used to login - so we now offer you a choice.
If you're a current Open Id user, you can have it both ways: just check your profile after you login.