Oh?

There seem to be many possible ways of saying this - \"two point oh\",\n\"two point zero\", \"two dot oh\", two point nought\", \"two oh\", \"web two\"\n- with a certain amount of variation according to nationality, company\nloyalties and other factors. (...)

We've heard various arguments for the rightness or wrongness of one\nversion or another (\"you have to say 'zero' because 'oh' is the name of\na letter only\"; \"just say two oh because the decimal point is\nirrelevant as there'll never be a minor release\"), but these don't\nreally persuade in the face of most people's usage.