As of now, both the ReelCam Client and Controller are also available as web apps. This means that you can use them in Flash browsers without installing. It is ideal for desktop PCs, and Macs as well.
With the Client web app you can have a single PC, hooked up with multiple USB cameras, and run ReelCam Client in multiple browser tabs, one for each webcam, effectively allowing the PC to stream from many different angles or views. The possibilities are limited only by the boundary of your imagination ;). This has been successfully tested on the Microsoft Surface Pro, allowing recording both front and back cameras simultaneously. But, as always, your mileage may vary.
Though I can easily make a version for the Windows and MacOS desktop, I'd prefer to go the browser way, unless of course someone give a good reason to have the former.
BTW, the Client web app does have certain limits, such as no GPS access, nor Snapshot feature (due to file restrictions on Flash). Likewise, the Controller web app is unable to download recorded files. It may be possible to find a workaround for these issues in the future though.