If the information is correct, we should see Skype on Windows Phone in the first half of 2012. According to Pocketnow, this information comes from Paul Thurrott who has a good track record of correct information.
And that is not all, according to him, Microsoft will also be releasing 25 top apps from Android or iOS before the end of first half of 2012. All these sound fantastic except that none of them can really be verified or confirmed.
If all these are true, Microsoft is really spreading their wings on Windows Phone.