[Balloon] Balloon3 FYI

Just a note to say that usb speakers on L3 seem to work a treat with
madplay. These were Trust speakers costing very little and bus powered -
total draw 190ma from psu at moderate volume.

And BTW .. that was with 2 versions of madplay running, one outputting via
internal codec (no speaker attached) and one via usb. No glitches.

Nick