Long awaited Skype app is launched on marketplace on 2/25/2012. Although its not searchable directly on marketplace at moment, wierd though i managed to find a way to download it from there blog post.

If you want to upload it through Zune, below is the link

zune://navigate/?appid=c3f8e570-68b3-4d6a-bdbb-c0a3f4360a51

Or by opening the same post and click here

And keeping it more simple and utilizing the windows phone 7 you can press the search button and scan for the QR code below

qr code_WP blog post.png