After using the Sony W80 and GPS-CS1KA for a week, I can tell you that it is very simple to use on PC. Install the software, plug in the camera and GPS unit, and you're browsing pictures and locations with minimal effort.
But a question I've heard a few times in the last couple days is, "But will it work on my Mac?"
I'm mostly a Mac guy. I keep a Windows PC around for tasks that require it, but for everyday use and working with photos, I use a mac. The GPS unit isn't officially supported for Mac, but my initial research into the issue is showing some promise. There appear to be some very solid tools readily available for the task.
Over the next few weeks I plan to explore this in more detail, and share a simple workflow for the Mac that works as well as what Sony has already developed for the PC.