Over the last few days, 3 firmwares for the Samsung Galaxy S were leaked. The main thing about these firmwares are that they all are based on Froyo. However, all the three firmwares are alpha builds, and so there are still some performance issues. These leaked Froyo based firmwares got all the Galaxy S owners interested, as visible from this thread over at XDA forums.
Many people were curious to know when the final update will be rolled out, and now Samsung has officially given a time frame for the Froyo update. Samsung UK announced through their official twitter account that the Froyo update will be released to all the Galaxy S phones by end of September, irrespective of their network provider.
Hopefully, the international version of the Galaxy S will also get the Froyo update within the same time period. If end of September is too far away for you, then you can download and flash your Galaxy S to one of the leaked Froyo firmwares.