Android dev TGA_Gunnman has been added to Amazon’s hit list for this latest in a litany of single-click phone unlocking methods. In spite of the impending lawsuit (not really), his Samsung Galaxy S One-Click Root program does exactly what it says on the, err, titlebar.
There are separate versions for the Captivate and Vibrant, so make sure you get the right one. All users have to do is download the program - currently Windows only - run it, and click the One Click Root button with their Captivate/Vibrant connected up to USB. Now all you have left is to sit back and wait for the custom ROMs to start rolling in (since there aren’t any yet).
To anyone attempting this, please read the original posts on XDA-Developers thoroughly, and be mindful of the risks involved in rooting and flashing ZIPs to your phone.
Now get out there and start using your single clicks to their full potential.