The quranic surah-like-it challenge has been met when some 530 years ago the first scriptures of Sikhism 'appeared' in muslim-ruled/influenced Punjab territory and proved to be special enough to engage people (both muslims and hindus, who thus became ex-muslims and ex-hindus) in declaring them Divinely Inspired and thus giving rise to a new religion that in the past 500+ years have attracted some 22 million pious believers.
The quranic surah-like-it challenge has been met yet another time when in the mid-nineteenth century the first scriptures leading to the modern Bahaï faith 'appeared' in muslim-ruled Persia. Again these scriptures were considered Divinely Inspired by some muslims (who thus became ex-muslims) and proved special enough to form the basis of yet another new post-islam religion that has now some 5 million pious followers.
Thus the quranic sura-like-it challenge has been met at least two times in the past 1400 years, giving rise to two new post-islam religions, each with their own sacred scriptures, considered Divinely Inspired (and apparently 'more special' than the Quran) by its followers. (However, no muslim will and can ever admit the quranic challenge has been met, for when he does that he no longer is a muslim but an apostate.... And the fact that both Sikhs and Bahaï's at times have been/are being persecuted (and sometimes even killed) by muslims says enough... )
Likewise, the islamic claim that the Quran is protected from corruption / tampering / altering has been proven moot now that there is in fact a 'corrupted' version of the Quran published and both physically (book) and virtually (internet) present on the face of the earth AND used by a growing group of muslims as Divine Guidance. I'm talking about Rashad Khalifa's version of the Quran in which he omitted verses 128 & 129 of chapter 9. (Khalifa was killed in 1990 after he was declared an apostate for publishing his version of the Quran).
http://members.lycos.nl/whatsthisthen/suralikeit.html