I'm really interested in Go, but I wish they would elaborate on statements like this:
Although Go is a young language, it has a lot of system
packages and a growing number of user-contributed
packages. With only a few exceptions, we have found Go
packages for everything we have needed.
Highlighting what is missing is the best way to fill in the gaps (especially on a blog directed at eager developers like this)
You can see a few of the packages we wrote ourselves as we open sourced them: http://www.stathat.com/src
Basically what I was referring to as missing were the Amazon SES package and braintree. We haven't released the package for braintree yet, but we will.