What i've seen so far is that Multiboxing will be allowed in Rift IF you don't use software to send your keystrokes.
I wouldn't expect that to stick if that's the plan. The last time someone got banned on a "because you're multiboxing with software instead of hardware" policy, the policy was changed and the ban was reversed -- http://sites.google.com/site/khromtor/ The only thing that kind of rule accomplishes is to make people spend a bunch of money on hardware that they could have spent on something else, in order to do the same thing they would have done with software. And people are going to use software anyway, whether they prohibit it or not. Pushing people to hardware is also going to bite these publishers in the butt, because when people start cheating (botting, hacking, etc) via hardware instead of software, the publishers are going to lose a huge amount of edge in battling cheats -- they will no longer have access to scan for them. Such a rule would serve to fund efforts on hardware. Not that I dislike hardware, we should get some Arduino-based multiboxing hardware projects going.