What version number will Android Ice Cream Sandwich have?

Since Google announced the next major Android OS implementation, worldwide known as the Ice Cream Sandwich, there was a constant debate on the version number. Some sources opted for 4.0, some for 2.4, but what stands behind their pick? Inside Google statements, leaked sources or just simple copies of others rumbles? We will talk today about all of them and explain our view on the matter, while referring Google’s own words and major tech giants.