Seems to be an exodus out of Islam at the moment; I don't know how many thousands of Muslims have been baptised to the Christian faith in UK recently.
In one Muslim country it has just be confirmed about half a million of recent converts from Muslim background, within one Christian denomination only.
Virtually these reports are streaming in from almost all over the Muslim world at the very moment.
I met these people everywhere!
In India I used to gather with a convert church (in other words, they were all from Muslim background), in Pakistan I met with a group of believers from Muslim background, in fact I met a leader (from Muslim background) who lead a group of 200 converts from Muslim background.
The stories we hear from Indonesia, Iran, Nigeria are just unbelievible, that is until you meet the people, the actual eyewitnesses.
In fact Muslim statistics (probably exaggerated though) state that 5 million Muslims turn to Christianity every year; that excludes those who simply leave Islam for Atheism or merely secularism!
Any way here is a good site about those who leave Islam
http://www.bibleprobe.com/islamapostates.htm