As an Apple user for more then 4 years, I have seen Apple's exceptionally good products suddenly burn and die once a new device comes out. Sure they could optimize and fix bugs on new updates, but every update that you apply to your iPhone, iPod touch, or iPad lags it. I have a second generation iPod touch like many other early adopters of the touch-screen technology (and touch screen apple devices) and it was revolutionary and could run silky smooth, doing what I wanted it to do without any lag. Then the updates kept rolling month after month, until the iPhone 4 was announced, and iOS 4 was released.. Since then, it takes around half a minute to open the music app, longer to read emails and minutes to browser the web on Safari. Turning off spotlight helped with the lag dramatically, but until this day, iOS
4.2.1 is what my iPod touch has been stuck at, and performance isn't perfect (at all).. What Apple did to the device was to cripple the hardware through the software updates, and as an iPhone user, I feel burned and disappointed by Apple for not providing a product that can last.
Tl;dr: I'm disappointed at Apple, they killed a perfectly good iPod touch off