Ehm, Well I have a few idea's and the Buddha himself has said a few things about that in the sutta's.

The way I understand it. Enlightenment in the strickt tipitaka sense is where you realize that life has been lived to completion. That aware of whatever causes would give reason for another birth is no longer of interest to you. Renouncing those causes quenched the fires of craving and clinging. And so makes one an Arahant.

Some Arahant's through training in concentration have the powers Shaunc talks about, Many however do not.

WIth Love