Putting an end to weeks of speculation, Apple today released an update to the iMac line while also introducing what it calls the Magic Trackpad, a wireless multi-touch surface that brings MacBook-like gestures to the desktop.

The new iMac all-in-ones sport the same cosmetic design as their predecessors, but they now support Intel's latest dual-core i3 and i5 processors, as well as quad-core i5 and i7s. They also come with discrete ATI Radeon HD for graphics, and if you buy the higher end 27-inch model, there's the option of including a 256GB SSD as your primary or secondary drive. Base prices for the new models – including a Core i3 or Core i5 processor, 4GB of DDR3 RAM, ATI Radeon HD 4000 or 5000 graphics and either a 500GB or 1TB hard drive – range from $1199 to $1999.

As for the Magic Trackpad, the device is an external surface featuring a smooth glass and aluminum design that basically looks like a bigger version of the trackpad on the MacBook. It connects to a Mac using Bluetooth and enables things like pinch to zoom, two-finger scrolls, rotating an image with fingertips, three-finger swiping back and forth between web pages, and four-finger Exposé triggers. The Magic Trackpad can be configured for single or two button commands and supports tap-to-click as well as a physical click. The mouse replacement (or companion) costs $69 and is shipping now.

Last but not least, Apple also unveiled a new 27-inch LED Cinema Display which will be available in September at a suggested retail price of $999, updated Mac Pro desktops with support for up to twelve cores using a pair of hexa-core Xeons, and introduced a AA battery charger for $29 – yes, you read that right.