If it's almost complete, then finish it. Load it on your tablet and start marketing yourself. Talk to local restaurants and ask then to try it out on 1 or 2 dev

If it's almost complete, then finish it. Load it on your tablet and start marketing yourself. Talk to local restaurants and ask then to try it out on 1 or 2 devices. Give it off for free and just collect feedback. It is a decent idea and has potential.