Steem Keychain mobile will come at some point but there s only so much I can do, you re welcome to help if you want things to happen faster.
Regarding SPS, I personally think that driving investments to the blockchain is as important as the development part (and Im a developer), what good are new features if nobody know about them.
I ve never said that people would be sent according to the result of the elevator pitch. Talking about which I was actually coming to your blog to ask you if you d want to participate, since I can see from comments you seem to know what you re talking about.