Our options are: A) Let the users create an account, type in an e-mail address, and we send them a verification link (I hate these) B) Let them log in with a Google Account. They would actually be redirected to a Google.com page to log in, and Google would give us the e-mail address (we never have their password).

Personally I'd much rather do B as a user, but I can potentially see some confusion for users, especially if they don't have a Google account already. In theory we could allow both, but for launch we are only going to spend time on one. There's also a concern that some users would think it's a scam to get your Gmail password (even though it's entered on a Google.com site).

What do you think?