Google Glass: 
from "Dragon Ball's Scouter-Glass" to the real glass.

Camera

Google Glass has the ability to take photos and record 720p HD video. While video is recording, the screen stays on.

Touchpad

A touchpad is located on the side of Google Glass, allowing users to control the device by swiping through a timeline-like interface displayed on the screen.^[51] Sliding backward shows current events, such as weather, and sliding forward shows past events, such as phone calls, photos, circle updates, etc.

Technical specifications

For the developer Explorer units:

• Android 4.0.4 and higher^[4]
• 640×360 display^[6]
• 5-megapixel camera, capable of 720p video recording^[7]e
• Wi-Fi 802.11b/g^[7]
• Bluetooth^[7]
• 16GB storage (12 GB available)^[7]
• Texas Instruments OMAP 4430 SoC 1.2Ghz Dual(ARMv7)^[6]
• 682MB RAM "proc".
• 3 axis gyroscope ^[52]
• 3 axis accelerometer ^[52]
• 3 axis magnetometer (compass)^[52]
• Ambient light sensing and proximity sensor ^[52]
• Bone conduction transducer^[7]

from wikipedia

MMG Comment

This is the scouter-glass that I was seen in "Dragon Ball" when I was a children. I never imagine it can be real in my life. Now, it is the one of the best innovation in 2013. I hope it should be cheaper for the next 3 years because I want to wear it when I go to cycling my bicycle (outdoor).