I use PDANet+ with my S3 and it works great, but it was getting warm when I had it plugged in.
Tried to talk to a Samsung rep and if I understood correctly, I should not have the S3 plugged into power while using the WIFI of PDANet+.
Does not get warm if I tether my PC with PDANet+ but I need WIFI for my Tablet. Also my wife can use the 4G with the WIFI.
Has any one heard of this over heating problem?