I can understand this product for Windows and maybe for OS X 10.3 and earlier (but it doesn't run on those!). But how does it improve over Spotlight, introduced in 10.4, and the Dock? Looking at the Web site I can't see an advantage to using this product with 10.4 and later because those abilities are already built in to the OS. Add to that the issue of system slowdowns, memory leaks, bug and security questions and it is hard to see why Google bothered to expend the resources to create this program for Macs. If it ran on 10.3 and earlier, it would have a potentially useful niche.