How many 'versions' of the holy Quran is there today

 How many 'versions' of the holy Quran is there today؟
 At least two, probably more (I am pretty sure about the third
 one, but can't prove it yet, so I am not going to say where and
 what just yet), but it is common knowledge that the Hafs text
 and the Warsh text (mainly used in Northwest Africa) are 
different not only in the vowels but also in some consonants.
 The differences are small, but they are there. And both of them
 are for sale and in use today. Hafs is the much more common one.
 The third version I have heard about has by far more substantial
 differences in comparison to the other two. For the Warsh and 
Hafs differences see a few examples at: 

http://answering-Islam.org/Quran/Text/warsh.html