Published on March 5, 2007 By Island Dog In XBOX
Well if you were planning to run your own applications or operating system on your Xbox 360, Microsoft has something to say about it. Microsoft released a security fix that addresses an issue with the tamper protection mechanism in which people (hackers) had discovered a way to run other operating systems on the console.

" Microsoft confirmed the issue on Friday. "Microsoft has worked with the party that reported this issue and has already distributed a fix across our distribution methods, both online and offline," a company representative said in an e-mailed statement.

The update was pushed out via Xbox Live, Microsoft's online gaming service. Any game coming out after February 20 will ship with the fix, which is also available for download on the Xbox Web site, the representative said. "

Read more at the article below.
on Mar 06, 2007
I don't homebrew yet on the 360 but the patch isn't too much of a concern for me since I never use Xbox Live.