I believe the templates were upgrades from Motion 4 Templates for Final Cut Pro 7 (they were: Atmospheric, Pulse, Snap, Splash, and Swarm.) The 1.1 update brought everything up to date for retina displays.
They are located in: Motion.app/<show package contents>/Contents/Templates/Compositions/
There is also other Library Content included with the update located in:
Motion.app/<show package contents>/Contents/LibraryContent/
In my "install", Decode, Skyline, and Vine are located in:
/Library/Application Support/Final Cut Pro/Templates/Compositions/
However, those are three Motion 4 templates I customized for FCPX myself, so the installer might have done something a little different. There is also some other Library content in /Library/Application Support/Final Cut Pro/ . (Some people actually install custom templates in this path as well [you might also see folders for Effects, Generators, Titles and Transitions] but I think this location is supposed to be "reserved" for the time being).