As we spin up our pilot group, I'm looking for a good short video to share with users that highlights key new lightning-only functionality, without a ton of spin (i know - dream a little dream for me). 

Does such a thing exist?

I found this session (too long but the right idea) : https://www.salesforce.com/video/1779815/

this video is a pretty good start, but would like more content / features

http://pages.mail.salesforce.com/gettingstarted/lightning/experience/

this one is way too much gloss for my nonprofit blood

https://www.salesforce.com/form/conf/sales/salesforce-lightning-demo-csg/

any other suggestions?