A couple of days ago Samsung released the source code for the Samsung Epic 4G Touch, and now root has been achieved. We have two methods which are essentially the same, but the first build is more complete:
From XDA member Zedomax:
Download files here
Put your Epic 4G into download mode by holding down Power button and Volume down buttton, when you see an option screen, let go of both buttons then hit Volume up button.
You should now be in download mode, connect your USB cable from Epic 4G Touch to a Windows computer. (Sorry ODIN uses Windows onlyí¢€¦)
Continue Reading Here
Tutorial: Root and ClockworkMod Recovery for the Samsung Epic 4G Touch [Videos]
Robert Nazarian - talkandroid.com