Pretty sure the dev is just one guy who also has a life (job, family, friends) outside of app development. I'm sure he's eager to get the beta out there in the wild, but doesn't want to deal with tons of bug reports for issues he already knows about.

I'm excited to be able to use Boost too and Rubén has been pretty good about giving updates every few weeks even if he hasn't met the timelines he was hoping for. I would guess that we will hear from him again soon.