Samsung Captivate (Galaxy S)
FROYO UPGRADE LINK
http://ars.samsung.com/customer/usa/jsp/faqs/faqs_vi ... »
Also it says that you need to be running 32-bit but I have 64-bit Windows 7 and it worked fine for me. The update went flawlessly. Everything seems to be working and it does seem a little bit quicker doing certain things, but not a huge difference.