On this fine day we've released two new services: LZMA and Tar. These new tools complement the existing Zipper service to give you several options for portable data compression in the web browser. We believe that client side compression can improve user experience by decreasing the time it takes to upload content. For a whole lot more about client side compression, give our short screencast a watch.
Finally, please take a look at the Bit Squeezr demo, which gives you a visceral feel for these new services.