Glad it arrived by the weekend matey. I played for a couple of hours last night. It is amazing, I can't begin to imagine how much work has gone into the charting, even a simple song like satisfaction has 2 charts, rhythm and lead, and some songs have 3. I can only assume the dynamic difficulty is author by some kind of algorithm, otherwise the workload would be staggering.
Oh and still on the lookout for a spare ps3 Pre order code if anyone has one