yes you can print wirelessly
No. It's fine to buy things from iTunes wirelessly on your iPod touch. Also, the next time you connect your iPod to your computer, your purchases will automatically copy and transfer into your iTunes library.
No, the iPod will not charge if it is off. The iPod must be on for it to charge.
You can't get apps wirelessly without wifi but you can plug your device into computer.
Yes, the iHome does charge the iPod.
No you can not over charge an Ipod Touch. sorry
you just connect wirelessly to your home wireless modem (if you have one, of course)
If you plug your iPod into a computer or wall adapter, you can charge your iPod Touch.
It depends which iPod you have.
Use the cable that came with the iPod Touch to connect it to the computer, and the iPod must be on for it to charge.
To charge your ipod touch, just plug one end of the USB cable(ipod should have came with one) into your ipod and the other end into a USB port on your computer. Your computer must be turned on to charge your ipod.
You need to have iTunes to charge your iPod Touch. Does your PS3 have iTunes?