I love [fingerpinger] and have used it with great success both on a Mini with Magic Trackpad and on a MBP with the built-in pad. Now I want to use the Magic Trackpad on the MBP (ignoring the built-in) and I can't get it to find it. I think I understand what's *supposed* to happen (I give [fingerpinger] a 2), but no matter what number I specify, it always picks-up the internal trackpad only. The system sees the Magic Pad fine and I can use it as per normal. I have the 12-10-2010 version of the external, which I think is the most current.
Any suggestions on this? Seems to be working for others, from some searches I've done...