"By the grace of G-d
Shalom everyone!
The category ""Noahide Religions"" is extreemly misleading Rambam doesn't say Muslims are Noahide just not idolworshipers.A Noahide (Ben Noah, Chasid Umot haOilam) according to Rambam and others is someone who officialy accepts the 7 Laws and observes them.According to letters of the Rambam Islam is herecy, a false religion started by a false prophet:
Mohammed the False Prophet - Islam the False Religion

Rivka Olenick 

""A prophet will the Lord, thy God raise unto thee, a prophet from the midst of thee, of thy brethren."" Deuteronomy 18:15 
The false prophet, the navi sheker, the ""madman"" Mohammed, as the Rambam calls him, convinced his followers of Islam that there are several verses in our scriptures that allude to his being a prophet. The Rambam states: ""These arguments have been rehearsed so often that they have become nauseating. It is not enough to declare that they are altogether feeble; to cite as proofs these verses is ridiculous and absurd in the extreme. Neither the untutored multitude nor the apostates themselves who delude others with them believe in them or entertain any illusion about them. Their purpose in citing these verses is to win favor in the eyes of the Gentiles by demonstrating that they believe the statement of the Koran that Mohammed was mentioned in the Torah. The Muslims themselves put no faith in their arguments, they neither accept nor cite them, because they are manifestly so falicious."" 
Mohammed claimed that Deuteronomy 18:15 specifically refers to him. He said that it was he who God arose as ""a prophet from the midst of thee."" Of course, he himself nor anyone else ever found one word in the scriptures that proved that Mohammed arose as a prophet. Yet, he and his blind followers accuse us of manipulating the text of the Torah. They ignorantly claim that we purposely removed every trace of the name of Mohammed from it. However it was they that would not accept the main precepts of the Torah, out of defiance to the Revelation at Sinai. So in great desperation they created a book that horrendously warps and taints our scriptures and undermines Moses as the greatest Prophet. After all this they attempted to legitimize the Koran as a book of truth. 
Isn't it amazing that exactly what they accuse us of - ""altering"" the Torah text - is exactly what they altered when they made up this ""imitation"" and called it the Koran. What they believe is so obviously false, yet the world is convinced that this is a book of truth only because of the vast numbers who read it, and not because it contains any real truth. The Rambam says: ""Therefore, all the nations instigated by envy and impiety rose up against us, and all the kings of the earth motivated by injustice and enmity applied themselves to persecute us."" There arose a new sect, which combined the two methods of conquest and controversy, into one, because it believed that this procedure would be more effective in wiping out every trace of the Jewish nation and religion. They claimed to prophecy and found a new faith, Islam, contrary to the Divine religion and to contend that it was equally God given. Thereby it hoped to raise doubts and create confusion, since one is opposed to the other and both supposedly emanate from a Divine source, which would lead to the destruction of both religions. For such a remarkable plan contrived by a man who is envious and querulous. He will strive to kill his enemy and to save his own life, but when he finds it impossible to attain his objective, he will devise a scheme whereby they both will be slain."" He slays them both because he really knows that he cannot destroy God, but he cannot tolerate God's Divine word and so out of his own insanity he kills those who represent God and kills himself believing he will enter paradise. 
The Torah states that the prophet that will arrive ""from the midst of thee"" is a person that will keep the Torah in tact as it was given to us by Moses from God. The Ninth Principle of our Thirteen Principles of Faith states: ""I believe with perfect faith that the Torah will not be changed, and that there will never be another Torah given by God."" As it says: ""Thou shalt not add thereto, nor diminish from it."" Deuteronomy 13:1. 
""A prophet will the Lord thy God raise unto thee, from the midst of thee, of thy brethren."" Islam took this sentence completely out of context and made inferences. All the statements before and after must be understood so that the meaning and purpose of the statements is known. The sentence quoted above was taken from a paragraph in Deuteronomy that specifically warns the Jewish people about the prohibitions of soothsaying, astrology, divination, sorcery, etc. The Gentiles believe they can manipulate and use these practices in ord