However, if your target is B2B (Business to Business) as opposed to B2C/D2C (Business to Client/Direct to Client) and you're selling the install plus enterprise support, then the sales thing makes way more sense, and is more expected/palatable for B2B type customers than your everyday consumers, so depends on who you're targeting.
Also right now we are focusing on B2B here in Spain like you guessed, and once we have the other things figured out, we will start shipping to the US and Europe. And after that we plan on rolling out to the rest of the countries.
Thanks for liking my product enough to want to buy it right away :)
Also, we want to test our OS extensively before we release it to be used with a BYOD model. We are launching soon and after that we will try to offer BYOD model as well.
If you are interested in trying it out and helping me in evaluation, please reach out to me via email on my HN profile. Thank you