One that particularly stood out to us from a practical perspective was a video of ultra-precise indoor navigation in use, complete with a waypoint overlay on the phone's display.
It looks a bit like a modern first person shooter game, except those little digital breadcrumbs lead to a delicious meal or an important appointment rather than a virtual bloodbath.
Also shown off was the potential to map large buildings in 3D from the outside, which another demo showed how Project Tango could detect and remove moving objects from a captured 3D image.
It really is like your own personal Google Maps capturing device.
Google even showed off how Project Tango could help space robotics, enabling operators to accurately track the position and movements of their robots from thousands of miles away.
Next, check out our Oculus Rift unboxing video:
It's all looking very impressive indeed, and with Lenovo's first commercial Project Tango handset just around the corner, we're rather excited to give it a proper spin.