Hey! God knows WHAT sort of issues you are getting with your Galaxy S, but i just wanted to ask ... GPS issue was fixed in Galaxy S quite long ago. It was there in some firmwares again, but its certainly solved now. Heck since my update to Froyo, i only got the GPS issue with two or i think three STOCK roms, after that .... It worked just fine. No problems at all.
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That OS Bug i mentioned sometime ago, it was also fixed by leaving Darky 10.1 and updating to Ficeto JVP.
You do know that there is NOT ONE FINAL Gingerbread update available yet ANYWHERE in the whole word. And the problems which new firmwares have, are also present in Custom ROMS.
I wont say Anything bad to the firmwares before i see a FINAL Gingerbread release, which is still FAAAAAR away Officially <_<
I, however am expecting something 'better & improved' from his Darky 10.2