[etrinh]

Personally, I found this a breath of fresh air from the modal-based alert dialogs out there, although I wouldn't call it an alert per se. Alerts (as others have mentioned) block the UI and prevent the user from interacting with it until the message has been dismissed. This is more of a low-key notification element.

First of all, I'm not crazy about the other themes, but Future (the one enabled by default in the demo) is gorgeous. Maybe I'm just a fan of circular progress bars, but check out the demo involving "Error destroying alien planet." This is really pretty!

The stated use case for this is "transactional messages in your app." For that I think it fits pretty well. It might work as a debugging utility, similar to how we used alert() before we had console.log(), but it seems like the intended use case is for an end-user-facing interface.

Two minor gripes: 1) Backbone as a dependency for a UI element is kind of overkill. 2) This is more of a pet peeve, but why is the demo written in Coffeescript? I love Coffeescript and use it all the time, but I think it makes more sense for something like this to be demoed in Javascript. People who know Coffeescript are a subset of people who know Javascript, so you cater to a larger demographic this way.

That out of the way, great job on this. I'll have to find a project to use this in :)