There's already MeeRun which I think is getting a Sailfish version. The thread is here, that's something which can be asked.

Sports Tracker had a MeeGo version, would be good to ask - since they are also former Nokia/Maemo folks, if they are looking at SailfishOS for a direction for their software. Probably not now with just about 500 users, but something to look for when/if another OEM decides to run with Sailfish.

I would imagine that part of the "features that didn't make it this version" is that of connectivity to activity/fitness trackers and their associated services. Of note on my end, I wonder if Jolla has spoken to their Finnish partners at Polar? And even if not, there's Rocke****ch which already supports the Pebble (and via my asking in that thread, could actually support several other wearables).

Speaking back to that this is a UX, not a "wish Jolla had this" thread - there has been very little commentary towards the Jolla working with various Bluetooth accessories. I wonder if this was intentional towards this phase of the project? There are a lot of items which any one of us can state are necessary towards a mobile in its first release. Accessory compatibility, and even a sense of greater ease in connecting to them, seems like something Jolla has room to give insight towards their thinking on that.