Apple’s iTunes Match service was supposed to be released to the public by the end of October and while we’re still not sure why the service has been delayed, Apple just released a new beta build of iTunes that allows developers to continue testing the service. Apple’s release notes are as follows:

iTunes 10.5.1 beta 2 is now available and includes a number of important stability and performance improvements. iTunes Match is also now available for testing on Apple TV.

iTunes Match stores your music library in iCloud and allows you to enjoy your collection from anywhere, any time, on your iPhone, iPad, iPod touch, computer and now your Apple TV.

The new build, iTunes 10.5.1 beta 2, is available for download immediately from within Apple’s developer portal. Once released, iTunes Match will allow users to mirror their iTunes libraries in iCloud for $25 per year.