For all you frequent flyers-
Free US Airways Silver Status for 90 Days - Baggage Fees Waived, Chance of Upgrades!
Try Preferred status on for size. See how you like it. At the end of your 90-day trial, you may want to keep it! Once you register, you’ll be Preferred within 14 days. And, if you qualify during your 90-day trial, you’ll keep your Silver Preferred status for the program year*. All you have to do is register and we’ll give you Silver Preferred status for 90 days (a $200 value!). You’ll travel Preferred and enjoy the best upgrades in the industry, waived baggage fees, bonus miles and more! Just register between May 15 and August 31, 2009. Then, check your Dividend Miles profile to make sure we have your contact information so we can send you an email with your new status. Not a Dividend Miles member already? Not a problem. Join now and then come back to register.
Make sure you read the whole thing- as I am reading it, this only applies to flights booked after you sign up.