Ah... The need to use Link2SD is that due to a bug in the android OS, since 2.3.5, once there are n apps stored on the SD card, the phone goes into an infinite reboot loop. There appears to be no fix forthcoming in the immediate future, and not so much as even an acknowledgement of the bug from Google, Sprint, or Samsung. It is reproducible. Just google it, and you will see for yourself. I am a bit of an app junkie; it's happened to me...