use any zip tool and extract

f709b679f477da791897a72af199eea9fe604f70.asus_google_cube-ota-20131023.180530.zip\system\app\VuduPlugin-release.apk

don't have a place to host it for you.

that said, it may have dependencies, let us know how it works?

and it worked? wow. you'd figure the recovery would block downgrades. what version did you downgrade from? i'm tempted to consider updating and then trying to root the latest cube rom using some newer 'universal' root methods, but i didn't want to end up stuck. if you can downgrade, that gives some ...

I don't have a solution for you, but in light of the recent groupon+rebate going on the cube, there will probably be more interest coming in the near term. I'll be looking to do something similar soon...