Recently I have bumped a few times in this message on Apple's server:
It happened also for the Zoë site (the cool email management system), so now we are offering a new home for Zoë.
Now, back to Apple: they have decided that bandwidth is expensive, and the time of free stuff on-line is over. This is ok.
It's known that Apple is not automatically blocking sites according to bandwidth usage, but insted there's a sysadmin picking the most active ones.
It's also a known fact that many small Apple developers were using Apple iTools service as a way to distribute their software from powerful servers with lots of bandwidth.
Each time I saw the above message, I was trying to download legal software from a developer who has been working on Apple's new OS.
Now... this doesn't look like a good way to help developers, besides, I think that most people getting this message is just people like me trying to download software for their Macs.