HeyMidpoint alternatives

I've been using Middlespot as a simple way to organize all the bits and pieces of my world into an easy view. If it were just files, I wouldn't bother. It's the fact that I can mix files (with little viewer windows), apps, videos, and anything else into stacks and zones on my desktop that makes it most valuable to me. I also like the ability to roll up to a 50,000 ft view and see my world like a puzzle master does puzzle pieces. It's light, intuitive and makes my day that little bit faster. It's my productivity go to.