With Skype WiFi for Windows 8, Microsoft allows you to use your Skype account to connect to public WiFi networks and pay as you use the service with your existing Skype credit.
The service currently supports over 1 million wireless hotspots across the planet.
While you're traveling, you can quickly find an available hotspot, like in an airport or cafe, and use that hotspot by paying with your Skype credits currently on your account.
Depending on where you are and what the provider is, the cost of using public WiFi networks with Skype WiFi for Windows 8 will vary vastly.
Version 18.104.22.168 is a freeware program which does not have restrictions and it's free so it doesn't cost anything.
Virus and Malware Tests:
For security reasons, you should also check out the Skype WiFi for Windows 8 download at LO4D.com which includes virus and malware tests. Additional screenshots of this application download may be available, too.