Ubuntu is good, but cannot replace other distris (Score 1)

Linux's rapid development plays an incredible role in today's OS fields, which may astonish Microsoft and Mac an etc. The innumerable varieties of distribution, of course, enhance this spreading trends, perhaps is the most irreplaceable aspect. Ubuntu is just one of the massive distribution of Linux on desktop. However, nowaday Ubuntu becomes an alias of Linux while other organizition for Linux have been ignored, which may do a lot of harm to the future Linux development, I think.