It really isn't a big deal, because:
1. Gordon Brown hasn't even mentioned it publicly;
2. The British population as a whole couldn't care less. The fact that the US President even agreed to see Gordon Brown before any other European leader was seen as a surprise by many here;
3. Obama is hugely popular with the British public, as will be seen by the enormous welcome/interest he will receive by the public in early April.
Maybe the Obama bashers should be a little more critical of the unthinkable burden that George W has left the current administration and be thankful that at least the person in charge has a brain! 2 wars, huge deficits, massive spending (with no way of paying), failed international diplomacy, failing infrastructure, science on the backburner, erosion of civil liberties, etc etc etc etc etc etc etc.. and people are whining because Obama gave Gordon Brown a DVD set..