Would it be possible to get an API method for the stackexchange [hot questions list](http://stackexchange.com/questions?tab=hot)?

Something like an official version of this: http://stackexchange.com/genuwine

Second to this would be knowing how to calculate the list but that would require a lot of API calls.

Third to this would be having vectorized site parameters so that multiple sites can be queried at once and the results combined?