Almost as soon as the iPhone debuted in 2007, people started wondering what else Apple would do with the novel touch screen technology it had developed. The answer came in September when Apple introduced the iPod touch, an iPod for people who wanted to run apps, play games, listen to music and watch videos — all using a device that was thinner and lighter than an iPhone.
The iPod touch has mostly paralleled the development of the iPhone — gaining processor speed and storage capabilities, getting lighter and slimmer and larger. Apple's most recent update to the iPod touch came in October 2012 when Apple debuted the 5th generation iPod touch.
The current model sports a 4-inch Retina display with 1136 x 640 pixel resolution. It measures 4.86 x 2.31 x 0.24 inches.
Two models are available: a 16 GB version priced at $229 that eschews the rear-facing iSight camera and is only available in gray, and another version available in 32 or 64 GB version priced at $299 and $399 respectively. The latter version also comes equipped with a rear-facing 5 megapixel iSight camera capable of 1080p HD video recording, with LED flash. The 32 and 64 GB models also come in colors: Space gray, silver, pink, yellow blue and red (with some proceeds of the red one going to support the (RED) AIDS charity.)
With the exception of the ability to make phone calls and operate off a cell data network, the iPod touch is every bit as capable as an iPhone — it runs the same software and even looks markedly similar, serving as a popular alternative for families equipping kids who are clamoring for an iPhone, or for anyone who's looking for a portable, capable iOS device that isn't as big as an iPad or iPad mini and isn't as expensive as an iPhone.