Out of curiosity, is there any SaaS service that effectively combines hosted email (with IMAP, BlackBerry support and such), contact management (so all users can participate in discussions with customers and vendors — very much like 37S's Highrise but without this necessity to Bcc/forward) and someemail tracking features MailChimp/Campaign Monitor employ — such as which emails were opened, when, which links were clicked and so on?