Here is the word "unlimited" used directly by a CMP member, this is from the "Focus on the code" section of the IAEI magazine, any inspector worth his salt is a member or uses this association for interpretations, here is the question and answer , below is the link
Question 5. In the July/August 2004, "Focus on the Code," a question was asked regarding 210.11(C)(3), 210.11(C)(3) Exception, and 210.23(A) Exception. Ray Weber?s comment was well written and correct for the most part. In the answer Mr. Weber stated that a single 20-ampere branch circuit could supply an unlimited number of receptacle outlets in an unlimited number of bathrooms. It is my opinion that this is not correct and not the intent of the original proposal when the article was revised.
In a small dwelling, perhaps this would be okay. If you look at our modern dwellings being built today, they are enormous in size and have multiple bathrooms. The original intent of the code change was to limit the load on the bathroom receptacle due to the use of hair dryers, curling irons, curler heaters, etc. In the more modern dwellings there may be five to six or more bathrooms and half baths.The language in 210.11(C)(3) states, "at least one 20-ampere branch circuit shall be provided to supply the bathroom receptacle outlet(s)." The word bathroom is singular and does not indicate that it may be both singular and plural, as does outlet(s). It is my opinion that the 20-ampere branch circuit is intended for the receptacle outlet(s) in a single bathroom only, not multiple receptacle outlet(s) in multiple bathrooms. ?L.J.
Answer 5. I understand this gentleman?s viewpoint and position; however, I do not agree and I remain steadfast on my comments and answer to the question. However, this does reinforce the fact that the written word is subject to interpretation and we as an organization, the IAEI, need to remain in the forefront of not only being involved in writing the Code but also in teaching and clarifying the meaning of the various sections for our members. It has been said that differences of opinion created the need for horse races; likewise, the Code is open to others to make their viewpoints known in subsequent Code change proposals and, then, to let the process confirm or deny the validity of those points. ?Ray Weber, CMP-3
http://magazine.iaei.org/foc/cmp3.htm#q5