I just went up through the ranks of Samsung customer support right before posting this to try to find out if there are in fact any other update in the works.
Chat first, won't waste your time posting it here as it has already wasted enough of my time.
Second, phone call to "tier 2" support, had me do a battery pull and restart, obviously a waste of time.
Third, I got transferred to "tier 3" support, apparently the highest level of support and where I was really trying to get anyway. Had me go into settings and turn on "wireless networks", yet another complete waste of time. However, I wasn't looking for him to fix it over the phone, I only wanted information. Believe me when I tell you I held his feet to the fire looking for some information on whether or not there was ANY information or ANY update coming out AFTER the JH7 OTA update. He assured me there was no information on any other update in the pipe other than JH7 which had obviously already been released. I did get him to divulge that they have had "a few" other calls from people who's GPS was still not working even after the update and that the calls that had come in so far were only for the samsung captivate and that they hadn't had any other calls in regards to the other Galaxy S phones on the other carriers which seems suspect to me since to the best of my knowledge, all the other Galaxy S phones share the same GPS problems. He said all he could do was take down my information and pass it on to "research and development". I even tried to get him to transfer me to research and development to no avail.
In the end, the only recourse I had was to mail a letter to "Customer Relations" or some such thing in Texas explaining my situation. I really believe that the only thing I took from the conversation that was of any real use is that the only way they are going to do anything about the problem is if they get enough people calling and complaining about it.
Do yourself and all of us a favor and call in to voice your concern with getting the problem fixed. It only takes a couple of minutes and maybe someone will be able to get more information than I was able to. 1-888-987-4357. Sorry I don't have better news to report.