I did the same thing. I'm selling my iPhone 5 for the cash and then deciding this fall if I want the lumia 925 or the iPhone 5S. I love WP so far and this phone is an absolute steal!
Sydney thanks for replying. I just read up on August's release of another upgrade in the GDR2. I just hoping Microsoft will upgrade the 521 to have FM Radio! From Windowsphone.com:
Listen to FM radio | Windows Phone How-to (United States)
"[h=2]Listen to FM radio[/h] Did you know that you can use your Windows Phone 8 to listen to FM radio? Tune in to your favorite station whenever the mood strikes you. Catch the news, or just get your groove on.
[h=3]Note[/h] Depending on your mobile operator, phone model, and version of the
Windows Phone operating system, FM radio may not be available on your phone.
"
That is the only feature that I really would want! Not sure if it is up to T-Mobile but I think it is; and the chances are not good IMO! I cross my finger still! LOL!