IPod Touch

The iPod Touch (stylized and marketed as lowercase iPod touch; also colloquially referred to as the iTouch, by analogy to the iPhone) is a portable media player, personal digital assistant, gaming console, and Wi-Fi mobile device designed and marketed by Apple. The iPod Touch adds the multi-touch graphical user interface to the iPod line. It is the first iPod with wireless access to the iTunes Store, and also has access to Apple's App Store, enabling content to be purchased and downloaded directly on the device. As of March 2011, Apple has sold over 60 million iPod Touch units.

4th generation
The iPod Touch (4th generation) was oringally released on September 12th 2010 with just a black model, a new white model was added on October 12th 2011 at the same time as the iPhone 4S. This iPod Touch was set at the price $199-$399.

New Features
The New iPod touch include most of the new features of the iPhone 4, including the retina display at 326 ppi and res of 960x640, a front camera for Facetime, and a back camera for HD video recording. The iPod touch 4 is 26% thinner than the iPod touch 3. The iPod touch 4 comes in Black and white and comes with the new 5.0 update, which includes free iMessage texting to other apple devices running iOS 5.0 or later for the mobile edition and Mac OS X 10.7 Lion or later and a better Game Center.

FaceTime(video-chat) FaceTime was added to the iPod touch 4 with the front camera, it enables iPod touch users to call any Mac with video conference ability, iPhone 4 or later, iPad 2 or later or another iPod touch 4 or later and have a video chat.But to use FaceTime with an iPhone you use an phone number but with iPod Touch,iPad or Mac you need to use an email address

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Camera and Photo's
The iPod touch 4g is the first iPod touch model to have not only one camera, but two, the front camera is 0.3mp and the back is 0.7mp but supports HD video recording at 720. There are apps on the App Store that make the camera better.

Retina Display
The display on the iPod touch 4 is designed by Apple and manufactured by LG. It features a multi-touchscreen with pixel density of 326 pixels per inch (pip) and res of 960x640. The screen is marketed as a "Retina Display", based that 300 ppi at 12 inches from the eye is the maximum amount of detail the human retina can process.

Issues
Some iPod touch 4 users have experienced Wi-Fi singal dropping when texting and browsing the web. other users experienced sound when recording video with wifi on.

October 2011 Model
On October 4th 2011 Apple announced a new white iPod touch, this model is still the 4th Generation iPod as it was the same specs as the 4th. All of its new features were from the new iOS 5 updated that was releases on October 12th.

5th generation
The iPod Touch (5th generation) is the latest iPod touch released.