Definitely points for 'cuteness'. I like sites like this that have personality..
In their FAQ:
"Actually, it's more like a framework or library, but "engine" sells much better. So we lie."
I löve working with Lua, and have used it two of my gaming projects before to good effect when handling character AI and item/world scripting. I would be greatly interested in seeing LÖVE extended to add support for 3D gaming projects, perhaps even if as simple as adding a simplified FBX model/rendering wrapper, a là .Net/Xna.
I've always been interested in game development, I just have much more important things on my plate at the moment and in my free time I have projects I have a bigger desire to complete.
Edit: There's many things I would like to learn, however most are much more physical things. I'd love to learn things like carpentry or metal casting, things that interest me on a fundamental level. I'm already into electrics so I suppose my interests are going back by the technological leap!
I've developed something like this myself, but it didn't get this much polish. Lua is a great asset when it comes to being able to reload your game's code as it runs.