To get back in to the swing of things after such a long intermission on this series, I'd like to start the ball rolling with just a simple list of FOSS applications known as "cross-platform", meaning that they will install and run natively on multiple operating systems such as Windows, OS X and/or Linux. If you've been following this series, then you'll be familiar with some that I already covered in detail. As this series continues, I plan to use this list as a sort of outline for the applications that I will be covering in future articles.