If you have the AMEX Plat card you can get free access to the AMEX Travel App.
When you download and login to the AMEX travel app from your iPhone or Blackberry you can create a free TripIt Pro account or upgrade your current TripIt account to Pro for free.
With TripIt Pro you can get a free membership to Regus’ 1,100+ Office Clubs in 500 cities worldwide! Just login to your TripIt account on your computer after upgrading on your phone and then follow the link for the Regus membership offer.
So you’ll not only get 51,000 miles, 4 years of free airline club membership, and a $200 airline fee credit, but you’ll also get a free Regus membership!