What do you thing about developing a payment system for Vericoin (and SuperNet) with NFC-Cards and mobiles?
It should be quite simple on the hardware side: A raspberry pi with connected USB-NFC Reader and a simple touchscreen connectet to the SPI-Bus and some button of course.
Hardware cost approx. 60€.
Then NFC-payments could be inegrated into the Andorid and iOS wallet and some kind of VeriCardNFC or SuperNetCard
Yes, this could be a great community or hobby project, and this is a great idea to keep tech-minded VRC fans together. If you aren't interested to commercialize the device, then that's it, that's all I wanted to say :-))) If you are interested to commercialize the device then please read on :-)) hopefully you will find some useful information below.
As for developing a business ready payment processor device, that is a more complicated case. I suggested here back in June/July to roll out an ATM or payment processing device, but to be honest my suggestion was for mainly PR reasons. Once VRC start developing such device then the accompanying press releases could provide some good publicity for the coin. However, there are difficulties involved with the commercialization such devices. Prior to marketing and selling the difficulties are in R&D (research and development) and regulatory procedure.
R&DThis is an interesting one, lately lot of start-ups jumped into commercializing Raspberry Pi based solutions - it is not as easy nor practical as first seems :-)) Yes, the buses and pins are there, so you can use SPI, I2C, UART, yes we can buy the cheap peripherals from Sparkfun, Seeedstudio, etc., but the fact that the Raspberry Pi is a very capable device also introduces a few problems as well. The Pi is big, certainly bigger than what you need for this use case. Plus, once the touch screen is integrated the device is even bigger. That means the designer quickly run into the usual practical problem: electronic enclosure. For this device that you have described won't be possible to find a good looking bespoke enclosure (and I guess we wouldn't want to roll out an ugly one). That's why most of the Raspberry Pi based devices use a custom enclosure, but that means extra cost, at least $20,000 to get the enclosure. Apart from the touch screen, we would need a WiFi module to get internet connection, that means extra cost and even bigger device.
My experience is that these projects almost all the time end up using a custom design, to roll out and manufacture their own PCB. In this case the hardware cost less than using the expensive Pi, touch screen, WiFi board combo, and you can use a good looking bespoke enclosure from OKW, Bopla, etc.
RegulatorySuch device has to comply with safety, electronics and all kind of other regulations, not to mention the compliance with financial regulations related with payment processing, and the regulations are quite region specific. Therefore, better to see the US and rest of the world market differently as the requirements are very different in these two.
EU and rest of the world. Once the CE mark is obtained and the certification partner (that is accredited by the regulatory body) was selected wisely, then the device is eligible in not only the EU market, but China, Japan, Taiwan and the Middle East. So it is quite important we select the correct certification partner. Still, go through on the regulatory process is a relatively expensive (£10,000) and time consuming task.
As for the USA, it is even more expensive and time consuming. Not too mention if your device communicates over a wireless protocol then the FCC is pain in ass (and I assume your device would have a WiFi internet connection instead of using the Pi Ethernet connection to enable easier integration in the shops that use the device).
There are many other issues with hardware/firmware design and commercialization of the device, and I am sure you know that, and I just wanted to put my 2 cents here and not to tell what you should do, you will know how to handle the design and the rest, but if you run into problems let me know, I am happy to help if I can.