I\'m using Xcode 4.3.2 and it tried to install an update to the command line tools.
I clicked the update button and Xcode told me that [my apple id] does not have access
I had the same problem last night after the update to Mountain Lion and Xcode 4.4.
This morning I tried to build something in xcode and it told me that developer mode wasn't enabled on the mac. Once I enabled it, I tried to download the command tools again and that happened to work fine now.