As near-worthless as general election polls are at this point in the campaign, it's still interesting to note that Rasmussen recently had Obama beating McCain by 7 points in Colorado (
link), and McCain beating Obama by 1 point in Ohio (
link).
So many articles have been written that Colorado is moving Dem for a decade, and somehow it never pans out much for Federal elections. This is one of the most oversold psephological theories out there.
I do think that the magnitude of the Democratic trend in Colorado has been greatly overestimated. However, we've already seen more than one poll showing Obama winning the state at this early stage, whereas not a single poll showed Kerry winning it in 2004.