My new job has me traveling all over the Dallas/Ft Worth metroplex daily and when I get to my destinations I have to pop open my laptop and get on the internet. I just got the LG Adrenaline (thru At&t) and it keeps dis-connecting, then re-connecting and it is really annoying so I am looking for another alternative. I need to connect my laptop PC and my Ipad.

What device do you recommend? Clear hotspot or ispot? Verizon? Sprint? Any device suggestion/input is appreciated.