I'm trying to get my hands on some low-end Verifone or Ingenico terminals for a custom e-voucher application. I found the devices at the right pricing and with the right functionality, but I'm quite dazzled because I can't find any information anywhere about how to program custom functionality into these things?!
I hope I'm not into NASACIATOPSECRET land now? Or maybe we're supposed to purchase SDKs or whatnot?
The farthest I got was some file listings on VeriFone's site that require login for download but I can't find any signup link.
Would appreciate any pointers.