So we all predicted it, and Apple made it real this morning during the keynote. The iPod nano is now available in it’s second generation form, sporting an aluminum casing with some great new colors. What’s nice about these are that they are even thinner than the original nano units, which is hard to believe because those things were tiny. The new 2GB nanos are available in silver for $149 USD. The 4GB model sells for $199 and is available in silver, green, blue, and pink. Finally, the 8GB $249 model is strictly available in black. Apple has even made the packaging for the nano smaller, resulting in 52% less material usage which makes it nice for the environment. The new second generation iPod nano is available today.