It has been quite a long wait for Samsung Showcase owners with Cellular South. This Galaxy S device is the latest one to get Android 2.2 aka FroYo update. Update is available via Kies Mini, which you can download from Samsung website.
Full instructions are available here.
1. Fixed, Missed voice call while playing YouTube content
2. Fixed, Restore Buddies now contact list after upgrade
3. Fixed, Force-close issue when Voice call ringtone menu selected after setting Default ringtone
4. Fixed, Restore default ringtone if Speak Caller ID selected prior to upgrade EC10
5. Fixed, Google Client ID change
6. Google Rooting Security Patch 7. Google Market security patch