Great player and deservedly took the 12 shirt from Nonu and kept it.
It is a shame to see him leave but he is and has always been a dual coder. Almost indisputably the form 12 in world rugby right now and he's not shamed the black jersey on or off the field (re: nude, drunken brawls) so I don't see why people take such an issue with him.
It's hardly keeping it if you sod off after wearing it for a massive three games in a row, just before the biggest games of the year!
It's stuff like this which means I have an issue with him. I find his lack of commitment deeply disappointing. And I don't watch enough S15 to comment on domestic form, but I'd have rated Steyn higher based on the internationals.
Final point - If nude drunken brawls are shameful, every rugby team in the World ever should be permanently blushing. I know this is the modern age and all that, but I shall stick to my traditionalism on this score. It's no big thing.