This frankly came out of no where. According to Skype‘s own FAQ the Windows Mobile version has now been officially dropped supposedly because of a subpar user experience sucked compared to the iPhone and Symbian version:
Why can’t I download Skype Lite or Skype for Windows Mobile?
Unfortunately, Skype Lite – a version of Skype for your mobile phone – and Skype for Windows Mobile are no longer available for download from our site.
We’ve chosen to withdraw Skype Lite and Skype for Windows Mobile because we want to offer our new customers an improved mobile experience – much like the version that has proved so popular on the iPhone, and which is now available on Symbian phones. Our focus is on providing a rich user experience that allows you to enjoy free Skype-to-Skype and low cost calls as easily on the move as you do at your desktop.
We felt that Skype Lite and Skype for Windows Mobile were not offering the best possible Skype experience.
Can I still use Skype Lite if I already have it?
Yes. People who have already installed Skype Lite can continue to use it throughout 2010.
Can I still use Skype for Windows Mobile if I already have it?
Yes. People who have already installed Skype for Windows Mobile can of course continue to use it.