The latest addition is a social aspect that plenty of small businesses and freelancers would likely be very interested in: the ability to aggregate and track not just your own data — that is, how often and how quickly you get paid, etc. — but data supplied by others as well, to see how you compare to the rest of the industry. As Mike explains in his post, all of this information would be voluntary, and would remain anonymous.
Not only that, but Mike says FreshBooks will be looking at the aggregated data to find the best performers and interviewing them for the benefit of the whole community. All in all, some pretty cool features, I think. Nice job, guys (and girls). Stowe Boyd (an advisor to and investor in the company) has more here.