electronic signature mac os x

I am developing a Cocoa/Objective-C application. I need to use an external device to acquire handwritten signatures in electronic form (e.g. http://www.signotec.com/internet/page.php?naviID=900000169&site=900000168&typ=2&rubrik=900000003&s_sprache=en).

I did not find any Mac OS X compatible device. Does anyone kn开发者_开发问答ow any solution for this?

http://www.topazsystems.com makes a signature pad that has linux / solaris libraries, could probably be made to work.

but your are right in that there aren't very many options for a plug-and-play signature HID.