The ETN Mobile Miner is just a simulated experience to help introduce newbies to cryptocurrency, without risking damage to hardware or needing any technical knowledge. I've been covering Electroneum since the blockchain went live in November, and post a weekly news roundup which you might find interesting. I've already covered the mobile miner in a few posts, this one covers why they're doing it: https://steemit.com/electroneum/@johngreenfield/electroneum-mobile-miner-first-impressions
If real mining is something you're interested in, I'd recommend checking out MinerGate. They have a desktop and mobile app, as well as CLI tools. Definitely a good place to start.
My latest weekly news post covers a leaked document that Electroneum prepared for prospective investors and partners, it gives a good oversight of what the project aims to do; https://steemit.com/electroneum/@johngreenfield/electroneum-weekly-news-roundup-special-electroneum-uncovered
To be perfectly honest I don't really have the time to put into faucets these days, only really claiming from the ones mentioned in the original post once a day purely because I've been using them for so long (it's always go on, one more payout). I mostly trade on exchanges these days with quite a few different currencies and tokens. I was lucky enough to back the Electroneum ICO so I got a few thousand from that, and then I CPU and GPU mined using my Alienware laptop for the first month doubling my holdings. It's so painful to see the current prices, but practically every other coin is hurting right now. I've got faith in Electroneum's long-term viability.
I'd recommend not selling your Bitcoin just yet, we're currently at the bottom of a dip and to be honest no-one really knows which way the price is going to go next. Everyone's hopeful, but with the threat of regulation this year, it could be the last days of the wild west of cryptocurrencies. ICOs are now at fever pitch, with new scams popping up every single day. I'm expecting one final boost in the price of BTC around May time, and that, in my opinion, would be the best time to liquidate. If the bubble is about to burst, a lot of coins could go under. I'd recommend looking for crypto projects that have some real-world purpose, next-gen crypto projects that are a solution to a real-world problem.
My portfolio is quite diverse at this point, but I've been thinking about doing a follow-up post on my holdings after one I put up a few months ago. Steem has become a massive part of my portfolio now, overtaking even Electroneum and I've found it to be the most profitable way of earning some cryptos without a big financial investment. I also believe in the projects long-term potential.
Enjoy the site and if you ever have any questions, fire away! Peace!