I already have a fongo account and phone number however I can not for the life of me find out where one can download the Windows desktop app. You FAQ http://support.freephoneline.ca/entries/22891591-Download-Freephoneline mentions the app but provides no link to download!
Update
I found out that one has to register for a completely different account at http://freephoneline.ca/ and get a completely different phone number than what you have for fongo mobile free phone software. Does this not sound counter productive? You are using twice the number of phone numbers than if one was able to use the same phone # on your desktop computer as you can on Fongo mobile.