Hi,
New to the site, but have been lurking for awhile. While sitting in a Southwest Airlines jet at the east terminal at Lambert, I noticed a 4G signal. I did not get a chance to run a speedtest (pulling back from the gate), but the signal strength was -77 dBm 8asu (according to my Note 2). Mobile network type of LTE:14. Also, had a good signal (i believe 4 bars). Hopefully, that's a good sign for things to come!