Ted & I were just talking about this a few weeks ago. The power supply looks like it could be much smaller. While it's not that big now it looks like it would easily fit into a smaller encloser like Richard did. The current size works in my bag but if Telefunken did it make it smaller I bet they'd get more traction out on the street.
While we are on the power supply discussion, mine came with a giant 16v battery, Ted runs his off of a 9v Tekeon, does the power supply work off any voltage from 9v to 16v? I'm thinking of going with a smaller battery to save some weight.