I don't and haven't played a retro in at least a year but I'd for sure come back to check this out, the ownership and development team are great. Definitely superior to any other current retro, in multiple aspects.
I assume you are speaking of a Social Network as stated above, what specific functions would you require? Such as the following; the ability to upload statuses and/or profile pictures etc, communicate individiually and/or in groups, allow specific privacy settings such as who can see/comment on...
That is absolute nonsense, no paid or licensed software is required. I assume his intentions were to "sell" you the software/licence. However, all you need is JPEX and a bit of knowledge,
shorturl.at/iDLZ4 - this should help you (shortened due to filters, RZ forum)
It most definitely is! Read the Jasonette documentation. It is a JS wrapper, it will wrap your Web App into a Native Mobile App. Alternatively, you can use Androids WebView with an extensive JSON manifest. There's more solutions out there than you think, they are just not utilized.
A
Are you interested in collaborating on said project? If so, it would have to consist of a competent team with thorough theoretical planning. A few of the main areas would be content management, economic planning/management, contingency plans (preparations for any scenario) and general...