I can't go to youtube at work. Is that the instructional video that 4Sevens put together? It actually explains the UI fairly well, but the instructions could have been simplified a bit.
I almost bought the OSRAM when it first came out, but the color tint turned out to be quite blue, not sure if it's the same now. Also even thou the manufacturer claim they are the same efficiency, someone posted the spec of both and OSRAM appears to be lower than CREE.
I just ordered a EX10 as well as an Extreme ( both Q5's) from 4-Sevens