As some of you have already experienced, WunderPebble may not be working for everyone. I believe this is because Wunderlist is preparing to roll out their official public API and has made changes to their system. I’ll look into it more in depth and report back with any changes.
This is good news because it means that I will be able to enable new features. I’ve started working on transitioning to the new API so that as soon as it’s launched WunderPebble will be compatible. Look forward to lots of new features.