Has anyone tried this to see if you can use someone else's iPhone to activate your Tripit Pro account? I have an android phone so AMEX can't figure it out. They could easily provide me with a PROMO code to enter on the Tripit Pro website to activate it for free that way. Not sure why they won't do that except perhaps they're worried that people who use the regular Tripit app on Android will get disappointed that it doesn't include Pro features.