Testerday I got my pebble. Paired with SGS3 and enabled accessibility service. Immediately my phone started to say "folder opened" "folder closed" and also continuous input option grayed out.
I do realize that it is not a bug of pebble, but touchwiz issue (talkback service in particular). And I found an option to stop the voice commenting my folder actions. But maybe somebody found a solution for continuous input issue?