The "find a good design and stick with it" idea seems to be an Apple trait, as it applies to hardware just as much as software. The Mac Pro design debuted with

The "find a good design and stick with it" idea seems to be an Apple trait, as it applies to hardware just as much as software. The Mac Pro design debuted with the Power Mac G5 in 2003, the Macbook Pro design comes from the Titanium PowerBook in 2001, the same year as the iPod Classic. The newer designs are the iMac (2007 for the current metal incarnation), Air (2008), AppleTV (2010) and iPhone (iPhone 4 in 2010, although you could argue that it hasn't really changed at all since 2007). The exceptions are the iPod Nano and Shuffle, which they don't seem to know what to do with.