Apple has released iTunes 10.5.1 and along with it, their paid music locker service in the U.S., iTunes Match. Coming after several extended betas, and past the previously announced October time frame, iTunes Match costs 24.99 a year and allows users to scan their iTunes libraries and either gain access to matching, 256kbps tracks from the iTunes Catalog, or upload their own, off-catalog tracks for access from any iPhone, iPad, iPod touch, or iTunes client on Mac or Windows.
Introducing iTunes Match. Store your entire music library in iCloud, including music you've imported from CDs, and enjoy your collection anywhere, anytime, on your iPhone, iPad, iPod touch, computer, or Apple TV.
So if you've been eagerly waiting to get your music to the cloud, hit software update or download directly via the link below. Then come back here and tell us what you think. Did Apple get it right?
UPDATE 1: iTunes is currently saying no new subscriptions are available due to overwhelming demand, and is asking users to check back in a hour. Let us know if you get signed up, and how long it takes!
UPDATE 2: Here's our official TiPb iTunes Match troubleshooting thread in the forums to give and get extra help!