I will bet 2:1 odds that Google will not sell the phone for $99 to people with old Google accounts. I'll put up USD$100 (against your $33), payment to be made by donation to the winner's favorite charity, proof by forwarding the email receipt. Reply to this comment or see my contact details on my user page to take up the offer and work out the details.
Edit: changed from 2:1 odds to 3:1 odds (edit 2: the original edit changed the other side's amount from $50 to $33, though as jfoutz pointed out I'm not thinking of ratios correctly, so I've changed the ratio back to 2:1 and left the $33 as $33).
Edit 3: thanks kw_ for taking the bet! For the record, the main reason I think I'll win is because the iPhone reportedly costs $179 to make[1], I'm assuming the cost of the Google Phone will be similar, and I don't see it making sense for Google to sell it at a loss. I choose the charity Village Outreach, because it is the top-rated charity at the charity-effectiveness-judging organization GiveWell[2].