I like the look of this so far. I'm a Unity user and I like making 2d game in Unity. Currently I'm using SpriteManager2 so I'll try the beta and come back with more feedback. Maybe some compare and contrast.
One thing I'd like to know is, while the beta is free, will the end product be free or open source? I'm asking this because I would like to make an open source Unity 2D game, but the license of SpriteManager2 prevents me from doing so. Currently I cannot find a good alternative yet. There's an orthello2D package, and it's pretty good but it isn't as feature-rish as SpriteManager2 yet.
Anyway, will be trying this and come back with feedbacks
EDIT :
Duh. I should have read more carefully. Just found this on your site
You are free to use the ex2D source code in your comercial project
You are free to modify the ex2D source code in your comercial project
You can not sell the original or the modified version of ex2D source code in any purpose
So I guess it's fine if I open source my project with your code then.