As promised here are links to the video clips Griffin filmed at the toyfair which demonstrate some of the action gimmicks and sound effects of the new toys.
Hasbro's TF display area
http://www.youtube.com/watch?v=ZH83YQvyPKY
Roll-Out and Command Optimus Prime
http://www.youtube.com/watch?v=EHn-tAYxYmc
Activator Bumblebee
http://www.youtube.com/watch?v=fLnh-DuMeLs
Bumper Battlers Bumblebee sound effects
http://www.youtube.com/watch?v=SB7vwTFG6LI
Bumper Battlers Optimus Prime
http://www.youtube.com/watch?v=VEJDcgqJvHA
Bumper Battlers Ratchet
http://www.youtube.com/watch?v=cd3CxDHLtTM
Transformers Animated Hand-held videogame
http://www.youtube.com/watch?v=c-bSVwSdhCY
They are all now active on Youtube so feel free to share these links on the other boards.