Yes, still moving ahead with my SMT based app, but would like to know a little more information about how the SMT transactions are added to the Steem blockchain which I haven't been able to understand from the whitepaper.

Will sites like steemit.com just replay the SMT data to the Steemit platform?

How hard will the transition from Steem to SMT be? (more than a few lines of code)

Can people add data to my SMT chain manually and not via my app, and hence needing good filtering?

How much Steem will you need to run a SMT? (does it need gas?)