The back and forth has been going on for years: last week, Parallels announced the newest version of its Windows-emulating software Parallels, and now here’s VMware with Fusion 6 ($60). Like its competition, this software allows you to run multiple operating systems on OS X at the same time, including newly-added support for Mavericks and Windows 8.1. If you’re already running a 4.x or 5.x version, the upgrade is $10 less.
