AMERGIN  Very nice app, seems stable and fast. Used it with a wiimote to control dvd player, itunes and various other apps. It is, however, not really donationware as it stalls every few minutes and waits for you to dismiss a reminder dialog before continuing. However I am thinking of sending the $19 as it could well be useful. I would though recommend to Camille that the reminder dialog become non modal in future versions to make it truly "non-crippleware", he could instead maybe limit its use to one app at a time until the fee is paid.  
(Version 2.6.4)

AMERGIN  Not knowing how MU's new 'threaded reply' works I have to write this as a comment. In response to MASTERWOW, the wiimote cannot actually generate sound, it will (using Osculator) allow you to control, for example, a synthesizer in GarageBand. It does this by mapping the movement of your wiimote or the buttons on your wiimote to controls in GarageBand (or any other application). I'd suggest you look at the Osculator forum at

http://www.osculator.net/bp/

for further info.  
(Version 2.8.8)