For those of you that don’t already know, you can make FREE Video calls from computer to computer all you need is a headset (sometimes not necessary), a webcam and the Skype software.
You can also make cheap calls to landlines and mobiles with a pay as you go or monthly billing.
There are lots of other options for mobiles too.
Tip: You can get the iPhone app in Canada on your iPhone or iTouch if you register a US or UK address (probably anywhere but Canada)
I use this service a lot to keep in touch with friends and family abroad, it seems to be more reliable these days and with computers coming with webcams installed its easier to get it up and running.
Check out the Skype website for more information