Thinking of getting an ipad mini with Skydemon for navigation.

I understand I would need the cellular version and so I have some questions:

Would I need a mobile phone contract to use my skydemon navigation?

When in use would the ipad mini receive phone calls etc.?

Would there be any other cost apart from the skydemon subscription?

regards John

I've been using SD for a couple of years on Windows mobile devices. I have struggled with displays in a bright airy motor glider cockpit, and the best I found previously was the Vertica 2, favoured by para-glider pilots. I have just recently bought an iPad mini 2 with retina display, not cellular, i.e. no real GPS. I have added a bluetooth GPS. I flew with it today for the first time, and have to say that this is absolutely the best hardware platform for SD ever, both in planning and execution. The software is shown off to its best by this iPad mini 2.