This could prove nifty.

Over at CES, accessory maker XtremeMac has announced the Tango TT, a new speaker dock for iOS devices. Per iPodNN, the dock is unusual in featuring a sliding back, which can raise or lower a device for viewing at different vertical angles. It also features a flexible dock connector, which lets iOS devices (including iPads) sit in the dock in portrait or landscape orientations.

The speakers in the dock are multi-directional, and additionally support input from non-iOS devices through a line-in jack. At launch, a remote app and a photo frame app will be available to enhance use. The Tango TT is due to ship sometime this summer, but no pricing has been announced.

Stay tuned for additional details as they become available.