As expected, Apple announced a complete refresh of its iPod lineup today in San Francisco, sprinkled with some iTunes and iPhone goodness. Hold onto your hats.

iPod

As far as iPods go, the most significant refresh is the new nano ($150 for 8GB, $200 for 16GB). Not only will it be available in nine colors, but it now has a built-in accelerometer. So whenever you physically tilt your nano, the nano itself knows that it’s been tilted, and the on-screen display will change accordingly. This could also open up the door for more (and, frankly, better) games available for the nano. The screen is also longer than before, and now has and now has a form factor that’s more along the lines of the old school iPod mini.

The hard drive-based iPod Classic also saw a revamp, and will now have a 120GB hard drive for $250. (That’s the only classic model from now on.) That’s it. If you’re thinking that the Classic is now starting to look a bit long in the tooth, you’re certainly not the only one. That said, it really is for people who need every single song they own on their person at all times, so it still serves a purpose.

The iPod touch is largely the same, though now with a silvery/chrome back and rounded like the iPhone 3G. It’s thinner than last year’s. It does have Nike+iTunes built into it this time around, though. So, good news for you joggers. She’s also cheaper than last year’s model, coming in at $229 for the 8GB, $299 for the 16GB and $399 for the 32GB.

And the display-less iPod Shuffle now lives up to its name in only the most cartoon-like fashion. Now, in order to put it into “shuffle” mode, you literally shake it.

iTunes

We’re now at iTunes version 8.

A couple things here. One, you’re now able download TV shows in high-definition. That means watching The Office in 720p, legally, on your PC or Mac.

Wait, The Office? Yup, NBC is back in the iTunes fold, which just shows how much influence Apple has over the digital distribution market. It also shows a lack of confidence in Hulu on NBC’s part. (Hulu is supposed to be NBC’s big foray into online distribution. It’s not bad in and of itself, but not being on iTunes makes no sense in today’s climate, for better of worse. Hollywood must hate Apple, but you know the Golden Rule: he with the gold makes the rules.)

Also, Genius. It’s a smart playlist deal that scans your iTunes catalog and checks your song ratings, genres, etc. in order to make the “perfect” playlist.

Apple