In line with a report from last week, Microsoft today launched OneNote for the Mac, making several significant changes to the service for both mobile and desktop users. The biggest change is in pricing with OneNote now free across all supported platforms. The free Mac app also includes 7GB of free storage space, which can be expanded by subscribing to Office 365. The Mac version is very similar to the Windows version with only a few subtle visual differences. Both versions share the same notebook metaphor and freeform note-taking features. Along with a Mac version, Microsoft also is releasing a OneNote clipper browser plug-in for Int