Waiters like to work in pricey restaurants serving wealthy patrons because they are able to pay for high class service. That's also why you see so many professionals in the banking industry: it pays to work for people with money. Xignite took note of this and decided to become the Maitre'd of information to the financial industry. With more than 3.5 Billion calls per month to its Xignite APIs, it is doing a fine job of it, as well.
Cashboard appears to be a full featured and mature time-tracking and invoicing system. It’s been about 9 months since the company opened its system up with its Cashboard API in beta, which continues to this day. The customer testimonials are quite persuasive and could lead to removing that manual Excel spreadsheet approach from the equation. After all, we're much more web savvy, right?