You can use any signature pad device that allows you to save the image
of the signature and then use the image from the device by bringing it
to the form...or use a ActiveX control supplied by the pad SDK that
does this automatically, this way you can just put the control on the
form.
You can embed jpegs and gifs in xml documents, so there is no reason
why you wouldn't be able to do this.
I'm not using a pad with Infopath forms, but I am using one in an
intranet application (web application) used at the point-of-sale pc at
a retail store. The pad I used was the HHP TT-8810 (USB version). It
turns out that this pad had a control that could be used in VBA, but I
built a wrapper DLL for it to be able to use it in a ASP web-page.
Maybe their new versions alreadly include a .NET SDK, if that is the
case you can just control the sig pad from your Form, via VB.NET (if
you use the VB.NET kit for Infopath 2003 sp1).
Hope this helps,
Miguel
