johnmccain.com shows romney with 247 and huckabee with 251 so that is odd.
http://www.johnmccain.com/pathtovictory/
If you read various delegate counts, they are all different, so not sure which one counts “officially”.
I lean towards the NYT list as it only counts PLEDGED delegates (note: they haven’t updated since American Samoa or Puerto Rico, so it will change tomorrow):
http://politics.nytimes.com/election-guide/2008/results/delegates/index.html
They have:
McCain 827 (will be 856 with the 9 from AS +20 from PR)
Huckabee 205
Romney 142
Paul 5
I did read that Huckabee has picked up at least 8 of Romney’s delegates from Michigan, but since those can’t be counted until convention, they are not added in...