I don't know if anyone else has experienced this or even started a threat about it but I've noticed my 3g improve a lot since getting my s3. I'm not even in an area where there's lte so i don't think it's improved 3g. I've also noticed that while I'm on the phone, the 3g signal stays on like I can browse and talk at the same time. Didn't know that sprint supported it unless you had WiFi or wimax.