I do not own (and do not wish to own) an iPad and so the answer is 0. On the other hand, someone, somewhere is using an iPad at any point in time so the answer is 168 hours.
0 Hours. The iPad was not released until 2010.
"Overtime" is usually defined as hours worked in excess of 40 hours in a week.
It depends on the ipad. Some ipads can take a few hours to fully charge while others only take a hour or so. The manual has the time it should take written in it.
You can sell your iPad 1 and use the Money for the iPad 3. You'll need to cash in as it almost impossible to use the Money from your iPad 1 Only!
Yes, you can use gmail on the iPad.
You can search and apply for jobs on an iPad, you can use an iPad for email for work and you can get a job writing apps for an iPad. The iPad is a tool for work, but you will still have to interact with people and use regular computers as well.
The iPad 2 and 3 have a six axis electronic gyro built in. Many apps use the gyro for navigation and game control.
It draws roughly 10W continuously. And it takes roughly 6-8 hours to charge, so it would take 60-80Wh
Only if you want to use it on your 3G iPad.
You use the touch screen to operate the iPad device.
Yes. Facebook has made an application for the iPad.
Although the iPhone 4s introduced Siri, a Beta program with voice recognition, it was not ported to the iPad 3. The iPad 3 does have speech-to-text capability for creating emails, and you can use your iPad as a voice recorder, but voice recognition is not built in. Siri may be introduced for the iPad later.