Lenovo ThinkPad Tablet (photos)

Lenovo's ThinkPad Tablet is due out in August 2011 with a base price of $499 (16GB). The tablet uses a 10.1-inch screen and runs Google's Android 3.1 operating system.

The ThinkPad Tablet measures 14mm thick and weighs 1.6 pounds.

On the bottom edge of the Lenovo ThinkPad Tablet you'll find a full-size SD card slot, an optional SIM card slot, an accessory output, USB sync, a Mini-HDMI output, and a headphone output.

The back of the Lenovo ThinkPad Tablet includes some branding and a 5-megapixel camera.

One of the Lenovo ThinkPad Tablet's most unique features is a recessed housing for an optional digital pen. Using the included software, the pen can be used to translate notes into text, or mark up documents.

The left side of the Lenovo ThinkPad Tablet holds a full-size USB port for external storage or accessory support.

Lenovo sells a separate $99 keyboard folio for the ThinkPad Tablet, converting the device into something with more of the feel of a laptop.

The optional keyboard folio closes down into a convenient, compact size.