Don't wait to buy a spare battery on the web for $11 with free shipping, Amazon. I bought 3.
And a silicone rubber drop ins. case for $2.50.
My first SGS3 fried itself on the charger, in 3 months, and T-Mobile was very quick to grant free exchange. "How did it happen?" I plugged it in , and the power insert melted enough to be loose,,, and the t-mobile charger fried too. "No problem." ;)
I had the local store transfer all the data, but for the 5 different screen collections, which i did with both phones plugged in. The Capitola store at the Mall on 41st was a big help. Tho i lost my song files somewhere,,, sim card,,, memory card,,, t-mobile app for old lousy interface HTC My Touch.
T-Mobile stores don't sell the good charging cord with the obvious top plug symbol. The new ones have a wider plug with less wiggle potential. I have not been able to find a good cheap silicon rubber drop case either at any T-Mobile store.
Got on Value plan instead of usual to save $20/month.
Wish we could unlock phones like in Australia where you can use any phone sold down there on any of many services, all services, without having to buy a new phone for each different service provider. The USA is not ahead in many good things any more and we need to look at other countries like Canada doing it much better, for the benefit of the common good, what govt is for.