I've owned both. I am very addicted to my iPad. The screen is much higher resolution and the applications that have been written for it are very good. This platform (the iPad) will lead us into the next generation of computing.
KEY Benefits:
ipad 2
Ipad
Well, the only difference between an ipad and a big ipod touch is that an ipad is slim and is bigger
Currently, the iPod Touch is better than the iPad, since the iPod Touch does pretty much everything the iPad does, except in a smaller size that fits in your pocket.
ipod shuffle
yes
The ipod touch and the ipad are the same except the ipad is bigger than the ipod.
No. an iPad is a 9.5" screen. An iPod Touch is a 3.5" screen.
Nothing, there is nothing your iPod Touch can do to help you get an iPad.
Yes, the iPad supports iPod touch games.
I would recommend getting the ipod touch because it is small but awesome
Personally I would go with the iPad Mini if I had to choose.