I wonder how this is different from authorize.net. My cart has an authorize.net "gateway" module, and PPI uses authorize.net for online credit card acceptance. Looks like they are trying to eliminate those guys and getting a full piece of the pie.
Thanks for the link, Mark. osFlowerCart 3.0 is in alpha testing and is looking *very* sweet. Complete separation of content from presentation (a la web2.0 specs), class based "plug-in" components, total CSS control.
I plan on contacting PPI and see if they will provide the API for free for us open source guys...