Top 2 E-Readers

Amazon Kindle

Features:

• large library of hundreds of thousands of e-books, newspapers, magazines, and blogs

• built-in free 3G wireless

• Wi-Fi

• built-in keyboard for notes

• 4GB internal memory

• Price:$189.00

Nook Color

Features:

• A 7-inch color touchscreen Android tablet

• Facebook and Twitter integration.

• Built-in WiFi

• 8GB of storage

• Price : $249

• "VividView," 16 million color, 1024 x 600 IPS display

• 0.48-inch thick body and a 15.6 ounce overall weight

Though it doesn't have 3G available it  is presently the only colored E-Reader in the market .