The Pebble is offically dead since the end of 2016 where Fitbit bought the software and the production of the hardware was discontinued.
But this does not mean that the existing copies don’t work any longer – Fitbit will turn off the cloud services by the end of 2017 but there is a new version of the Pebble App already available since April 2017 which does not require a cloud connection. Apps which are already installed on the Pebble and which don’t need a cloud connection can still be used. Also side loading of new apps is still possible as in “Nav Me” or “Pebble Camera”.
So my Pebble will still be usable until I got an alternative :-).