[kictanet] Obama Speech puzzle: read, memorised or simply no script?

The Obama speech puzzle.  Obama had a written speech which was infact distributed to media houses before he read it. But watching him present the speech, I was alomost convinced he was reading it off his brain, his own head if you like. Is he a master of reading off teleprompters or do you think he memorised it, or just gave a haphazard/unscripted speech?   Samson