I tried the above script, but i think the default bahavior of the locking key is "overwriting" the call to lock/unlock the touchscreen. Is there a way to change the key in the code from kb_lock to something like longpressing the right arrow?

i too am very interested in this functionality so my crumb crunchers can watch thier yo gabba gabba without pausing or restarting the vids. has anyone come up with a solid solution?