If you are just looking at it, you could easily say that the presumption is correct. iPad is just a bigger version of an iPhone/iTouch. It has the same OS of an iPhone/iTouch and same design (only bigger!). So what is the difference?
Multi-Touch
The Multi-Touch screen on iPad is based on the same revolutionary technology on iPhone. But the technology has been completely reengineered for the larger iPad surface, making it extremely precise and responsive. So whether you’re zooming in on a map, flicking through your photos, or deleting an email, iPad responds with incredible accuracy. And it does just what you want it to.
Up to 10 Hours of Battery Life
To maximize battery life, Apple engineers took the same lithium-polymer battery technology they developed for Mac notebook computers and applied it to the iPad. As a result, you can use iPad for up to 10 hours while surfing the web on Wi-Fi, watching videos, or listening to music. While surfing the web on a 3G data network, you can get up to 9 hours of battery life.
Performance
The A4 chip inside iPad was custom-designed by Apple engineers to be extremely powerful yet extremely power efficient. The performance is unlike anything you’ve ever seen on a touch-based device. Which makes iPad fantastic for everything from productivity apps to games. At the same time, the A4 chip is so power efficient that it helps iPad get up to 10 hours of battery life on a single charge. And iPad is available with a choice of 16GB, 32GB, or 64GB of flash storage, giving you lots of room for your photos, movies, music, apps, and more.
That's just some of the difference if you are comparing iPad over the iTouch.
So, imagine if you are going gaga over the games and applications on your iTouch! Playing Plants vs. Zombies or Fieldrunners on the iPad will be great!
