Indeed, as the price progresses new 28 year highs will become commonplace up until the all time high of $850 is in sight...
There actually seems little in the way of gold climbing surely and steadily through $850, short of some massive concerted effort by the international financial community to prevent this on the grounds that gold strength emphasises dollar weakness and would thus further destabilise the greenback. It looks now though that such a move may lack motive. There seems to be general recognition that the dollar has to fall further to relieve the huge US deficit and the mitigation of such a fall will likely come from Central Bank currency manipulation rather than gold price manipulation (Central Bankers are loath to rate gold as currency!), with the declining dollar already starting to impact on manufactured goods sales from the other industrialised nations.