Hi Michele.
Awesome plugin first of all, I've been using it on a friend's website (http://www.wenskaartenshop.be) with my custom ecommerce plugin (not the distinct plugin). It is just awesome to not have to go to analytics everytime to have a total overview of this days traffic.
I was wondering if it would be possible to somehow have a cached field for the total visitor amount, f.e. an option value, or a simple txt? This field could be updated @ XX:XX hours every day, so at least you would have detailed total visitors count, missing just the current day amount?
Maybe I'll try to add this on my own, and will post the used code here afterwards.
Again, thanks a lot for sharing this awesome plugin! I'll be somehow linking to it when the site is ready.