It seems like there may be a problem with the URL link for the Boost Mobile forums. I've tried using different browsers, even a different device, to make sure its not an error on my part. I receive a 404 when I try to access the Boost forums from phandroid.com/carriers-new/ (this is the page you access when you click "all carriers" in the pop up menu when you hover over "carriers" near the top of the page).
The URL link provided for the Boost forums is phandroid.com/categories/boost-mobile and the actual URL is androidforums.com/boost-mobile/
I would normally expect a redirect when a URL has changed, so I don't know if there's a problem with a redirect or if the URL needs to be updated for that link.
Just thought I'd post this issue.