The Hive Mind has posted his solution. Boom!
While this is great that this can be done, the manual does specifically say "permanent" once you attach it, and I am not sure Hasbro can really rely on all of their users doing this without potentially busting their housings/blasters in the process. You probably wouldn't want to keep doing this every time you opted to mount your device.
The Hive Mind: LTAR iPhone Cradle Removal: