Yes, the 1st generation iPod Touch does have Wi-Fi.
Yes.
No. You have to pay for wifi monthly if you want it.
mmm you cant download wifi but you can use wifi
No. The iPod Touch is wifi only.
Yes, the iPod Touch 8gb 3rd generation does have Wi-Fi capabilities.
If you connect to wifi, yes
No, you need wi-fi to text on the iPod Touch.
with wifi and the proper app, yes
No. The "3G" in "iPod Touch 3G" means third generation. It does however receive wifi.
No, as long a your wireless router is on you should be good :)
Go into settings and activate it. Select a network