USB radio driver for OSX
The active-robots USB radio dongle was not listed in supported devices in FTDI driver package and I mailed the chip manufacturer FTDI just in case if it some day might be. Before I know it, FTDI support sent me a driver supporting the dongle! Holy helpdesk Batman, that's what I call support! Seriously, I expected some reaction by 2008 if few thousand people ask it.
The outcome: TileToy runs nicely now with the USB dongle without overpriced Keyspan and additional power. Me happy.