FYI, for those who are also planning to take advantage of the Business Platinum upgrade offer. I upgraded my Biz Green earlier this week and was charged a pro-rated AF on the Biz Plat since my AF on the Green was not slated to be due for another two months or so. It came out to be ~$110, which is easily offset by the Jan-June Dell credit that I will be using before 6/30 (thus, able to triple dip, in theory, before I eventually cancel the card next year). I chose not to wait out the two months 1.) not knowing if the upgrade offer was going to poof during this span, and 2.) I have/had imminent bigger spends that actually accept Amex and benefit from the warranty coverage.