No diferent to dial-up in that respect, if you want to connect to the net as soon as you startup you can configure it to do so, if you want to connect manually you can configure it to do so, good luck and enjoy..
WPA2 hack: How secure is your Wi-Fi?
Add Depth Of Field to a photo using Tilt Shift Blur in Photoshop
iPhone tips & tricks
Comment afficher des fichiers cachés sur Mac ?