I’m not sure where you’re seeing “unsupported Apps” on the website, but anyway… Yes since we have transferred our development efforts to the Garmin platform, we won’t be providing any further updates or enhancements to the pebble version.
But since it was working pretty well in its last version, there’s no reason that it shouldn’t continue to run.
And Yes, it does run on the Pebble 2.
And yes, as long as the pebble app store is maintained, it should continue to be there.