I think the more exciting part of this is to see another media company releasing open source code. As it's been said, the JS library is becoming a crowded space

I think the more exciting part of this is to see another media company releasing open source code. As it's been said, the JS library is becoming a crowded space and perhaps it would have been better for them to contact another library and see about integrating into it. I think we're going to see the beginning of meta libraries. Code which links up multiple libraries. Maybe you grab a few libs from moo, prototype and jquery, and then layer Glow on top? Useless side note: When I was planning my own blogging engine I was going to call it 'Glow' so I definitely like the name at least :)