I agree. Although that being said I do think in the slams it is fairly close to which year he was playing better:
2008 Australian vs 2009- much better in 2009
Agreed.
2008 French vs 2009- much better in 2009
Disagree. He played terribley against Haas, Mathieu and Acasuso, ok he didn't play well in 08 but he played like trash in 09 apart from the final.
2008 Wimbledon vs 2009- similar
Better in 08. He didn't drop a set in 08 and lost to the great Nadal in the final, this year he dropped a set to Kohlscheber and nearly lost to Roddick (and would have lost to Roddick if Andy makes that backhand volley in the second set tiebreak)
2008 U.S Open vs 2009-similar, maybe a bit better in 2009
In 08 he didn't play that well to the semis, but this year he was hardly great, lost a set to his pidgeons old man Hewitt and Soderling and struggled with a slumping Djokovic and lost to Del Potro in the final, in 08 he beat a good Djokovic and destroyed Murray in the final.
However in Masters events and overall he has played much better this year, despite that he only won 1 (last year he won 0 anyway of course). So I would say overall his form this year is definitely improved.