Yes and no. It all depends on where you are.
Many hotels, restaurants, libraries and other public places provide free wifi internet service for patrons. In those places you may get free internet. Although it should be noted that many of these places require you to make a purchase before you are allowed on the network.
As far as your home goes, yes you will need to pay for internet service just as you would with a desktop computer. You may want to use a wireless router to make that internet connection available wirelessly throughout your house. Indeed you may find that a neighbor has a wireless router which you can connect to from your house. Connecting to it may or may not be legal in your area, and certainly is not ethical.
Yes.
if you have a broadband wireless connection from BT or O2 or the like then yes, since you already pay for internet for the wireless broadband
You will need a wireless router and a wireless adapter to have wireless pc to pc connection
You can use a wireless connection if you have a wireless router
For wireless networks you may connect either as an Ad-Hoc connection or an Infrastructure connection. Ad-Hoc connections are completely wireless, whereas infrastructure wireless connections are a combination of wired and wireless connections.
You do not have to pay any money, above and beyond whatever you pay for your wireless internet connection, or any DSi points for use in the DSi store.
When you go somewhere that has a wireless connection it will say, "Wireless connection detected". You will have to go and click the button that showed this message to chose that wireless connection and connect to it.
The Go connects to your own wireless network. There's no usage fee as such like a mobile phone, and it has no connection while it is outside the range of your wireless network.
That's impossible. No wireless connection for emulators.
connection without wires
Yes, you can. Wireless connection is not different from wired connection in a sense of functionality.
if you don't have a wireless connection from the X-box get a connection wire and do it wired
Yes you can if you have access to a wireless internet connection. The wireless connection or wired connection can be made if you have an internet connection and you can purchase a connection without a computer. However in general most locations (For example homes) without a computer do not have access to an internet connection. You will know if you have a wired connection because you are paying for it every month. For a wireless connection you may live close enough to a free wireless provider. Go to setting on your play station and at the bottom of the choices is one for network connections. After you click that try to set up an internet connection. The PS3 will search for wireless connections in the auto mode choice that will come up after the machine determines that you do not have a wired connection. Even if the search finds a wireless connection you may not be able to access the connection without a password, however if you can then you have set a up connection to wireless internet.