If you manage many websites, it would be great to be able to assign and modify quota/limit for every (or all) widgets on everyone of them. Maybe subaccounts for different websites (or clients with collections of websites) would be the way to go about it?
It's great idea for agency. I would like to suggest at least to show the total views of each widget (website) instead of global views (Phase 1), then to include function to assign or modify quota (limit) for every widget on Phase 2.