Watto could have known about jango through his underworld connections and given us more background about Jango's past adventures. The winged one could also use less legal means to get into the cloning facility. Than the Kaminonans ( sp? ) would not look like idiots instantely letting Obi-Wan inside their facility. And it would be great to here Obi-wan, Watto conversations since they are extremely different charecters.