I wrote this program in AutoIT. I know it is very simple, but it works. Also, the program is unrelated to WoW, and could be used for a number of things.
When you run the .EXE, a GUI will come up, telling you the hotkeys and with a blank field. Now what the program does is opens a window telling you to move your character every X minutes, X being the number that you write in the program. Thats all. It is called "Periodic Reminder", and I use it for BG's. It is different from an AFK bot because it is not bannable; you move your character, rather than a third party character. Link and virus scan below.
Program: PeriodicReminder.zip
Virus Scan: