Today Skype has announced the beta version of Skype Application for Windows Phone. Compatible devices include the Nokia Lumia 710, Lumia 800, HTC Titan, Radar, Samsung Focus S and Focus Flash.This early version will allow free audio and video calls over WiFi or 3G, alongside those any-number paid-for calls.
You can download the beta version of the Skype for Windows Phone app for free by clicking Here directly from your Windows Phone, or simply scanning the QR code below. You will need to have a smartphone running Windows Phone 7.5. You can check what version of Windows Phone your phone is running at Settings > About.