None of these coins are getting higher because of some "mobile" element, the defining moment that can be said is when a coin has achieved mass adoption.
Otherwise it's just devs and the same people who bought into the coin pumping it up.
Mobile app is good marketing and, a well-designed one, should ease the learning curve for new users.
http://prefundia.com/blog/getting-to-100000-users-paypals-60m-referral-program-that-nobody-knows-about/PayPal spent $60 million on their referral program.
User adoption is expensive and, with exception of flukes like Tumbler and Facebook, many companies had to spend $10s of millions to get their users. From this, you can see why crypto has struggled with mass adoption. Bitcoin foundation barely has any money and Ethereum itself only raised like $20 million and promptly spent it all. To get all the Joes and Janes on board, you probably have to spend $50+ million on just marketing / advertisement and wisely at that.
I think NEM will be the first crypto project to have a world class marketing budget. There's 2 marketing funds added up to 450,000,000 XEM. Developers / non-profit has to wait until $1,350,000,000 marketcap or $0.15 XEM and then they'll have like $67 million to utilize. $67 million could fund a few 30-second TV ads, probably do a ton of YouTube and social media ads, product placements, interviews on popular talk radio, et cetera.
To think Ethereum has already hit that marketcap but they were too amateur, inexperienced and lacked pre-launch foresight to think about long-term marketing & advertisement.
I think facebook caught fire in it's early days, it filled that void with myspace declining, and much of it's growth was through word of mouth. People knew others who had it, and since it was the new "big" thing it caught on in a big way.
I think the mobile wallet will be huge if/when it comes out, as long as it doesn't take years to arrive. If it's mobile, secure and easy to use that will be a big upward driving factor, people being able to buy/sell/trade from their phones is a giant advantage, especially since everyone has a mobile phone within a foot of them pretty much at all times.
A $1.35bn market cap would be huge.. but I don't think there's enough room in crypto right now for something that large without something else huge taking a big tumble. At the present the real big boys are btc and eth, and it's hard to see anything taking them down to usurp that market share without some kind of catastrophic event happening for either. Hell, even the dao fiasco didn't hurt etc much, it has recovered quite nicely.
I guess time will tell what the future has to offer, I like what nem has going for it, but am cautiously optimistic about it's future. History has shown that people don't always go with the brightest and best.. hopefully nem will break that trend.