Don't want to be a party pooper, but mobile mining is missed concept from the beginning. What you gonna burn your battery in minutes to get 0.02ETN? When you aren't even actually mining?
Better to have coindrops and other social raffle activities than to stear hot air in voids of hype slogans. Come on be serious and focus on massive adoption and simple mobile to mobile transfer and usage ecosystem. Leave mobile mining BS aside, because it makes every other good concept of ETN look bad. Focus on name branding, adoption and anonymity advantages. Don't mention mobile mining. And yes people need desktop wallet, on-line one is slow, laggy and extremely shallow in its core and content (check NXT for comparrison).
I personally use CLI wallet that works just fine, but people need graphic app. Come on it's not so hard. I am nowhere near coin developer, but wouldn't afford such toddler like mistakes and blind roads.