Hi, I just got my first windows phone HD7 used t mobile. I was wondering are there any apps you recommend I should get? Also How do I tell if my phone is updated to mango?
Settings > About (click more). If you are on version 7720.68 you are on Mango.
For a bunch of recommended apps, check here:
http://forums.windowscentral.com/marketplace-apps/176887.htm
I dont think mine is Mango it shows OS Version 7.0.7004.0..