What could we do to seduce them to make an NFCring compatible version?
I have a quicklock and it's annoying that I still have to carry that fob while having this ring.

Sorry, forgot the link: http://www.kaba.nl/verkoop-support/38108/partner-zoeken.html?country=HU&st=location

@Laszlo: I'm sorry to say, but I don't understand the Hungarian language. My search for representatives in your country gave a lot of companies/locations, but I can't read the information about them :-( So I have no idea about what products each of them is selling.
I send you the site/page where I found the representatives. It is in Dutch, but you only need the map!

@Laszlo
Did you go there:http://hu.kaba.com/en/kaba/55472/contact.html,
where I read "Wholesale, retail network, DIY: +36 1 288 5032"

I'm living in NL and I purchased 1. There are several representatives here in NL where I could buy one.
When you order one or more, then you need to specify the cylinder measurements!
My costs were about €550, including VAT and other overhead, for the cylinder + tools + card/tags.
Installation was a piece of cake: it took less than 10 minutes.
After I installed it, before I got the NFCring, I used a couple of NTAG213 tags to operate it so I expected the 2016-ring would do it.
BTW, you can download the specs and manual from their site.

Goto www.kaba.com and find the representatives in your country.
Kaba is a Swiss company.
Eventually you could google for representing companies.
This cylinder can have a length over 200 mm which is important when having a relatively thick door.
I hope this helps you finding one ;-)

Not 'Tanks' but 'Thanks' of course. ;-P

Tanks to John for posting this.
I have a** multipoint locking system** that was locked/unlocked with a key-operated cylinder. I replaced that with a Digital Cylinder (Kaba Evolo, not cheap) which is nfc-activated. The Digital Cylinder is nfc-activated on the outside only, so from the inside I can allways lock/unlock without any tool which is safe in case of emergency inside. So I didn't have to change my locking system which is now safer than before.
And Yes: it operates perfect with this NFC-ring 2016.
Goto a KABA site to find out about the various cylinder versions, applications and tools.