It’s uninstalling right now, I know I should have researched this first, but dropping support for 10.5 (can be done manually I know), and dropping PPC (can’t find a workaround for this). So I just can’t use it.

I know PPC is pretty old, I’ve not had one for years, but I know plenty of G5s still in use, personally I think it’s a little premature.

Dropping 10.5 support is possibly even more premature, I still used it up until a month ago for testing purposes. I often get emails from users who use 10.5, Snow Leopard isn’t much different so a lot of people just don’t bother upgrading. Lion might change this though.

Are there any benefits to Xcode 4? I honestly don’t know, the UI is totally different, maybe I just need to get used to it, but it seems worse, the existing Xcode UI was fine, complicated, but programming IS complicated.