Are the earbuds the same size and shape as the 3G iPhone’s?
Basically, yes. But it’s important to note that while these earbuds are the stock Apple style, they are not compatible with the iPhone’s earbuds. If you stick a set of iPhone earphones into a shuffle, you won’t be able to control it—not even playing and pausing. (Presumably this new three-button headphone style will be supported in all future Apple products.) It’s worth noting that Apple does sell a pair of in-ear headphones with the same set of buttons for $79.