iPod touch, The coolest iPod

The layout of the music library differs from previous iPods, with the sections divided more clearly alphabetically, and with a larger font. Similar to previous iPods, the iPod touch can sort its media library by songs, artists, albums, videos, playlists, genres, composers, podcasts, audiobooks, and compilations. Cover Flow, like that on iTunes, shows the different album covers in a scroll-through photo library. Scrolling is achieved by swiping a finger across the screen.
Like the fifth generation iPods introduced in 2005, the iPod touch can play video, allowing users to watch TV shows and films. Unlike other image-related content, video on the iPod touch plays only in the landscape orientation, when the iPod is turned sideways. Double tapping switches between wide-screen and fullscreen video playback.
The iPod touch allows users to purchase and download songs from the iTunes Store directly to their iPod touch over Wi-Fi.

The iPod touch is able to access the World Wide Web via a modified version of the Safari web browser. Web pages may be viewed in portrait or landscape mode and supports automatic zooming by pinching together or spreading apart fingertips on the screen, or by double-tapping text or images. The web browser displays full web pages as opposed to simplified pages as on most non-smartphones.
The iPod touch does not support Flash. Although the iPod touch does not include Java technology in its out-of-the-box configuration, Sun Microsystems announced on March 7, 2008 that it would make Java available after June.
Apple developed an iPod touch application for accessing Google's maps service in map or satellite form, a list of search results, or directions between two locations, while providing optional real-time traffic information. During the product's announcement, Jobs demonstrated this feature by searching for nearby Starbucks locations and then placing a prank call to one with a single tap. Though Flash isn't supported in Safari on the iPod touch, Apple also developed a separate application to view YouTube videos on the iPod touch.

The iPod touch also features an e-mail program that supports HTML e-mail, which enables the user to embed photos in an e-mail message. PDF, Microsoft Word, and Microsoft Excel attachments to mail messages can be viewed on the iPod. Yahoo! and Google's Gmail currently offer a free Push-IMAP e-mail service similar to that on a BlackBerry for the iPod touch; IMAP and POP3 mail standards are also supported, including Microsoft Exchange and Kerio MailServer. This is currently accomplished by opening up IMAP on the Exchange server. The iPod touch will sync e-mail account settings over from Apple's own Mail application, Microsoft Outlook, and Microsoft Entourage, or manually configured using the device's Settings tool. With the correct settings, the e-mail program can check many IMAP or POP3-enabled web based accounts such as Gmail, .Mac mail, Yahoo, and AOL.

The display responds to two sensors: an ambient light sensor that adjusts the display brightness which in turn saves battery power, and a 3-axis accelerometer, which senses the orientation of the iPod and changes the screen accordingly. Photo browsing, web browsing, and music playing support both upright and left or right widescreen orientations, while videos play in only one widescreen orientation.
A single "home" hardware button below the display brings up the main menu. Subselections are made via the touchscreen. The iPod touch utilizes a full-paged display, with context-specific submenus at the top and/or bottom of each page, sometimes depending on screen orientation. Detail pages display the equivalent of a "Back" button to go up one menu.
The iPod touch has only one physical switches, unlike the iPhone, on its sides: wake/sleep. All the multimedia and other operations are done via the touch screen.
The iPod touch interface enables the user to move the content itself up or down by a touch-drag motion of the finger, much as one would freely slide or flick a playing card across a table with a finger. Similarly, scrolling through a long list in a menu works as if the list is pasted on the outer surface of a wheel: the wheel can be "spun" by sliding a finger over the display from bottom to top (or vice versa). In either case, the object continues to move based on the flicking motion of the finger, slowly decelerating as if affected by friction. In this way, the interface simulates the physics of 3D objects, giving it a real world feel.
The photo album and web page magnifications are examples of multi-touch sensing. It is possible to zoom in and out of web pages and photos by placing two fingers (e.g. thumb and forefinger) on the screen and spreading them farther apart or closer together, as if stretching or squeezing the image. As can be intuitively expected from multi-touch sensing, the two fingers don't have to be from the same hand

Screen material: Glass
Screen size: 8.9 cm (3.5 in)
Screen resolution: 480×320 pixels at 163 ppi
Input method: Multi-touch screen interface, Sleep/Wake button, Home button
Operating system: iPhone OS
Storage: 8, 16 or 32 GB flash memory (up to 1,750, 3,500 or 7,000 songs; up to 10,000, 20,000 or 25,000 photos; up to 10, 20 or 40 hours of video)
CPU: Underclocked 620 to 412 MHz ARM
RAM: 128 MB
Wi-Fi (802.11 b/g)
Built-in rechargeable, non-removable lithium battery with up to 5 hours of video playback, and up to 22 hours of audio playback, times vary.
Size: 110×61.8×8 mm (4.3×2.4×0.31 in)
Weight: 120 grams (4.2 ounces)
Direct iTunes Wi-Fi store access
Wide screen video
Applications: Safari web browser, YouTube client, Mobile e-mail client, Google Maps
Widgets: Stocks, Weather, Notes
Access to Starbucks music (available only in selected cities across the United States)