This is great guys! I really think that this is the way to go. :)
But do you know about Scatter? It is already being developed, just needs the integration of STEEM blockchain... it could be easier than implementing it from scratch. And also the steem url way has some limitations as stated below...
Check out what Nathan published about his move to a desktop/mobile app approach here:
https://medium.com/@nsjames/the-blockchain-isnt-just-for-web-applications-silly-rabbit-926a4ea5ccd1
If you guys need a hand, just let me know...