Apparently you can use infinite-scroll and on another thread they’ve been able to modify pinbin in order to use infinite-scroll but I’m not able to do it and no one has responded yet. Hopefully someone will help us soon though. Thanks!
There is pinpress theme, which seems like a better fit for infinite scroll plugin: http://wordpress.org/themes/pinpress
But infinite scroll does work with PinBin! The answer is right here!: http://wordpress.org/support/topic/jetpack-infinite-scroll-support?replies=8
I just don’t understand code! :'(
No no code necessary. in wp-admin, under settings on the left, there is infinite-scroll settings. Go there, make sure ‘#post-area’ is in the Content Selector field. then scroll all the way down and there is a Behavior field that you set to ‘Masonry/Isotope’.