HumanDichotomy you give too much credit for too little.
For a start 3 of the 5 successes you raise are largely symbolic. Saying 'sorry' is one thing, actually halving the gap between Indigenous and non-Indigenous Australians is another entirely. Holding 2020 summits is great - but what has actually come out of them other than a warm fuzzy feeling?
Running a country is hard? Forgive me if I don't get out the violin and/or cry Rudd a river. It's not easy by any means however 'it's too hard' is not so much an excuse as a categorical statement of unsuitability for the job.
Governments are rarely defined by their agenda but by their reactions.John Howard will be remembered fondly(atleast by those who do remember him fondly) for his toughening up of national security, for cultivating extraordinarilly good will towards Australia from the American president, For clipping the wings of the trade unions, for courageous tax reform and for all the budget surplus'.That is not to say he didn't do more, merely those are the the defining traits.
Even though all governments commit themselves to budget surplus' I'm going to give that one to him because they made some very unpopular spending cuts to do it by I think 1999, obviously the unions was an undertaking he made and delivered upon. But the rest of Howard's "reforms" were really reactions to events like the Port Arthur massacre, 9/11, court rulings declaring the indirect forms of taxation to be illegal and the foreign policy of Bush and Blair.
Rudd similarly is to be judged mainly for how he reacts rather than how much "vision" he has. His major election undertakings(not including platitudes like 'keep the economy strong") were to rollback workchoices, upgrade public education, exit Iraq and sort climate change out. He did rollback workchoices and exit Iraq, he has done stuff regarding public education but the jury is very much still out on that one, on climate change he has not really shown much direction.
The events which have called for reactions are mainly the recession and China. For the time being anyway his economic management is generally praised, if not greater than Costello(I think a poll said a while ago people thought he'd be the best man to manage the Australian economy) the majority think the comparatively low levels of debt and the absence of a recession make him one of the better economic leaders in the world at the moment. Similarly whislt peolpe are uneasy about China most are convinced there is no man who has a better idea about what their doing then Rudd does.
What am I getting at? Not alot really, just rejecting the implication that he hasn't really made many practical changes when I think he's made slightly more "big decisions" than is par for a prime minister of around two years.