i also have a support ticket in that is describing an issue with the add request icon disappearing/reappearing, not working when pressed for both iphone and adroid for multiple users, however.....
even if this was not the case and the UI was not bugged at the moment, the only fields i saw that were available for a new request via mobile app, was title, site, description.
I cannot think of a scenario where we would ever allow all of our requesters to use this app, because of the amount of direct interaction needed by support with each new ticket, just so it would get to the right group, or technician. The trade off would not be worth it as it stand today, with the mobile app request features.
Its basically serving the same result if you created a new request by email, but with a ticket filter.
I would really like to see the app improved upon, we could really use it.