I'm strongly against the idea mainly because an app version of the forum can also mean fake versions of it being spread around for mobile users. When I say fake versions it essentially means phishing apps that are designed to imitate the real app potentially fooling a lot of users who will find it online, this could just result into a lot of users losing their accounts because of an app creation. Maybe the best alternative we can have is to develop the new site into a more mobile friendly website which can satisfy mobile users.