It's interesting how Johnson will be remembered. As the pacey bowler who burst onto the scene who later terrified batsman with 250 wickets, or as a hit and miss bowler, more known for his lack of direction and occasional hot series (don't all jump over me aussie fans, just putting forward two different perspectives). To me he never quite lived up to expectations. Had he found his inswinger and direction more often he could of probably been a great, as opposed to good. His record, I suspect, isn't too hot in Asia/England either.
I think after Englands last disaster in Aus, I commented that Johnson might not been around much in 2 years time to threaten England. Even so, this seems a bit sudden for somebody still hitting 90mph.