You are absolutely right! As i've mentioned in my post, Steem is the next generation App Store, and steemit.com is just a official prototype. Everyone can benefit from Steem and build their own Apps.
https://steemit.com/steemit/@facer/a-guide-to-steem-world

YES!
Steemit has the potential to be Revolutionary and I am going full in, Investing my valuable time and knowledge in curating content for this community, to make the community as a whole, even MORE valuable. 
I have already written multiple articles including one on "Why steemit is so important and revolutionary."
Though I have always been a cutting edge guy,  the MASSES have no clue about steemit and even if they did, would not use it because the user interface is far to uncomfortable for them. In order for this truly awesome platform to make its way into "mainstream" then there will need to be a huge upgrade in user interface and that obviously includes a mobile app. Over 60% of internet access is via mobile phones now and that will likely only increase as smartphones become more and more powerful and integrated into every day life.
So Steemit MUST have a mobile app. The question is will they develop one them selfs or will others?
Obviously there are a LOT of factors involved, including security. Though I am not a coder or a tech guy, so I won't even try and get into any debate about that aspect.
What I can say is that I love the Steemit community. I TRUST the people who are behind it and that we NEED a mobile app. So if this is not the one then let it be soon. If it is then THANK you for helping this community to the NEXT level!