[pwny]

Maybe it's all a fad (although I personally doubt it) but I think it's a step towards a revolution in it's own little way however it turns out. Modern IDEs are extremely cluttered and (imho) messy. Light Table seems like a refreshing change of pace.

As for the rounded corners, I think it really is a matter of personal preference and they're definitely not going to affect my ability to program. Colors are just used to visual convey information seamlessly (think syntax highlighting). I think they can really be put to good use.

I do agree with you that huge "files" (the concept seems to be abstracted by the IDE) could get messy. However, I trust the Light Table guys to get it right :)