I like the Apache 2.0 license -- while it's much lengthier than the MIT or BSD licenses, it provides similar licensing terms with the crucial addition of patent

I like the Apache 2.0 license -- while it's much lengthier than the MIT or BSD licenses, it provides similar licensing terms with the crucial addition of patent protection. If someone submits code to an Apache 2.0-licensed project which is covered by a patent they own, they're required to provide an _explicit_ license for those patents when submitting the code.