Now works correctly for the thunderbolt, just updated mine and checked it out got 97 ms ping, 12 mbps d/l and 1 mbps upload and this is with a weak 4G signal
Well, I had the beta installed too. But when went to the Market it would not tell me I had an "update". In fact, in the Market app it did not even show that I had speedtest.net installed at all. I presume because I had downloaded and installed the beta from a non-Market source. So, since I did not know if there was any difference between the beta and the new Market update, I un-installed the beta and then re-installed the Market updated program. It now shows again that it is "installed".Look down about 6 post, there is a thread about this.