hehe, I <3 Zurb, I've followed them and the cool stuff they post on their Playground and have been inspired with what they've done with Foundation over the years, too. Orbit seemed like a great component to include in Groundwork to achieve a MVP. I plan to write a fresh alternative or enhance and contribute to Orbit moving forward. The current version isn't quite as flexible as I want it to be (it needs to properly support content-only sliders with no images, have less image dependencies -- possible utilize SVG/font icons for controls, etc.)
Foundation has really tought me a lot and inspired me over the years. I gladly admit that I've been heavily influenced and learned a lot by the amazing work the Zurbians have been doing. I thought about just contributing to Foundation, but had so many ideas and things I wanted to do, that I knew they would eventually tire of reviewing my frequent pull requests :)