Very thin, beautiful, sleek, and extremely portable design. Bright, incredibly high resolution and sharp 2048x1536 ( 264 ppi) display.System-wide mirroring support. Solid performance and battery life, too ( although newer models are much faster). Built-in support for proper, effectively global 4G LTE and GPS on the iPad 4th Gen ( Wi-Fi/AT& T/GPS) and iPad 4th Gen ( Wi-Fi/Verizon & Sprint/GPS) configurations, as well as dual stream 802.11n Wi-Fi and Bluetooth 4.0 on all models. Dual cameras ( front and rear) make video conferencing and 1080p video capture fairly easy. 720p front camera is a significant improvement compared to earlier iPad models. Usable onscreen keyboard and support for an external keyboard.Support for thousands of iPad applications from a wide variety of developers.Inexpensive compared to notebook computers. Originally sold unlocked and without a contract in the US, and most other countries, with multiple wireless carrier options.