I'm also very interested in i3-style tiling instead of pre-configured layouts. I like being able to manage the splits more dynamically. I also really like i3's

I'm also very interested in i3-style tiling instead of pre-configured layouts. I like being able to manage the splits more dynamically. I also really like i3's concept of hierarchies, being able to nest the splits. And being able to switch a particular group between tabbed and horizontal/vertical organization. Regarding your $3 price for the paid version, I think you should be careful not to set the price too low. I happily paid $18 for the professional version of AquaSnap.