kenli I'm downloading the BlackBerry 10 emulator to try things out - it's not my highest priority, but I'll look into supporting it.
HappyJackie logo.png isn't necessary, and c2runtime.js is generated when exporting to CocoonJS (not a part of the Clay.io plugin). Does CocoonJS log any errors when the game freezes? Do you have a zip file you can send me to test with the CocoonJS launcher? My email is austinurc@clay.io
EDIT: Looks like I had this thread open for over 5 hours before responding, because I only saw your recent post after posting mine :) Good to hear!
If you post on the Clay.io Community, I'm likely to see the post sooner, but I still periodically check this thread