What is the difference between generations of iPod Touches?

there are plenty of differences. the first gen was heavy and rather basic. the 2nd gen (i have one) is lighter and a little thinner and doesnt have as much problems as the first gen. the 3rd has better software and added features and the 4th has 2 cameras which is pretty cool.

The difference between all these four generations is the difference of technology

First iPod with Wi-Fi and a Multi-Touch interface. Features Safari web browser and wireless access to the iTunes Store and YouTube. 32 GB version later added. iPhone OS 2.0 and App Store access requires an upgrade fee. iOS software updates no longer supported.

Second iPod with new tapered chrome back with Nike+ functionality, volume buttons, and built-in speaker added. iPhone OS 2.0 and App Store access standard. Bluetooth support added but not made active until iPhone OS 3.0, which requires an upgrade fee. Support for external microphone and remote added. The 8 GB model was re-introduced alongside the 3rd generation iPod touch in September 2009, and included the newer iPhone OS 3.1. iOS 4 was released for free for second generation iPod touch models June 21, 2010, but included a limited selection of features. Future iOS software updates no longer supported (As of iOS 4.2.1).

Third iPod updated to include the upgraded RAM, CPU and GPU internals from the iPhone 3GS; the 32 GB and 64 GB models include Voice Control support, VoiceOver, included OS version 3.x, and bundled remote earphones with microphone. iOS 4 was released for free for third generation iPod touch models June 21, 2010 and included Multitasking and homescreen wallpapers

Fourth iPod: The most recent iPod; has a front-facing camera for FaceTime, the iPhone's Retina display without an IPS screen,[29] has support for recording 720p video and 960 x 720 still photos via a back camera,[7] Apple's A4 chip, a built-in microphone and a 3-axis gyroscope. The hold button has been moved to the right of the iPod. Includes iOS 4.1.

so many differences between them ,but you should know the 4th Generation is the best ,it has two cameras on it ,can take a photo or record a 720P video and also you can make a video call with the software in it called Facetime with other people who has the same iPod touch or iPbone 4 for free.

Well the first three are pretty much the same, with each generation being a little more improved and newer. The 4th generation however, is very different. For instance: it has a camera, it's thinner, and it comes with more features

My answer is that each generation is different because they could of added new features(like a camera) The first gen is the first ipod version and the 4th gen is the newest.

there are many differences, hopefully my review will give you an idea of what the 4th gen has

http://newproductreviewer.blogspot.com/2011/02/app...

*edit* sorry wrong link, the correct one is above.