well i´m quite sure that i won´t be easy to make an os that could hold it against the established ones, and it´s definitely not possible to make it 100% protected.
but i agree that the google people are kinda smart so they might start a project that would maybe better than the existing ones, but that would take a long time and i don´t think that today many people would take the risk which is included in trying to fight microsoft.
but whenever there would be a new os, i´m open-minded enough so if it is good i would try it out.
