The sunnis believe there are 7 (maybe more?) different ways the Quran was revealed to the prophet and can be recited today. Do shia accept this belief or not? If we do then how do we know which 'Quran' is the correct one? (In which traditions did the Imams(as) recite the Quran?) And before you dismiss these differences as "meaningless", take a look at some of the differences highlighted in this article: http://www.free-minds.org/which-quran (This isnt an anti-islam site. Ironically, it is a quranist website) Granted, these differences dont have any effect on Islamic theology but they do change how we read particular verses and what those verses are really saying. These differences should matter because the word of God matters. They matter to me.