You can look forward soon to a project code named, Tempus for the time being. It will be a fully featured Time Management & Invoicing software(web app) written by and for Freelancers & Dev Shops alike, with tie-in options for accepting online CC payments and Basecamp - ALL at an affordable price. Even a client-count limited FREE version. I've been contemplating a blog of the design, and development process and posting to HN, but didn't know if that might be too boring even for all us nerds. My competion would be companies like Cashboard and FreshBooks. Let me know what you think!