This is really nice, especially all the integrations. I've been using slides.com for a while, and I may switch to this. But, one feature that would be amazing would be the ability to upload to an S3 bucket. Bonus points for creating a public bucket configured correctly to view the slides. It's annoying to have to carry every possible type of dongle and fight with A/V issues at random places when you need to show a deck on hardware that you don't control. I always make sure that the content I need to show is available on any machine with an internet connection, but it takes a lot of effort sometimes.