Your plan is to just throw this on GitHub and hope for the best? If it is you should definitely consider waiting for the DUNS number, the amount of users you're going to reach in the App Store compared to on GitHub is just enormous, also your app looks great and I would buy it for sure, but I would compile it myself because of the effort it would take.
HTML5 can be fast just like Native applications, but you need to know how to make it faster. Hopefully we are going to get more awesome libraries and frameworks like Sencha Touch to make our life easier.
The "spying" feature is only for Unity, since Mint doesn't use Unity then it doesn't have it. Also they aren't "spying" on you more than 10% of what Google is doing right now.
The problem with his article isn't that he tried Ubuntu the problem is the language that he used. He sounded like he wanted internet riots that would boycott Canonical.
Canonical made extremely great things for the open source community and because of one single thing he makes it sound like Canonical was a tumor inside the community that should be exterminated.