I commented on Hope's proposal, we'll see what happens! I don't know why Spin pulled their system, I speculate that they had a hard time maintaining the rental bikes. Lime Bikes seemed a little more high-tech and a little more user friendly in my experience. Both were similar types of bikes - a little heavier, commuter style, with a basket up front. Lime Bike has employees that help implement the system from my understanding whereas I'm unfamiliar with who helped facilitate the Spin systems.