I decided to write a post about my joy with using voice recognition software to play Achaea with and perhaps do some searching around for links as to where you might be able to find software that will work for you.
I use Dragon NaturallySpeaking, it works really well however the premium version is a bit hefty on the price tag. There are home editions, and student options available, not only does this help with Achaea, but makes chatting online, emailing, writing your next novel much easier. I believe Windows 8 has voice recognition software, here is a Video Tutorial to get it set up. (Sadly I am stuck on Vista, but I love it.)
As far as Mac users, pretty sure that's already set up for voice recognition, but I'm not sure what kind of mud client you use.
I think using voice recognition software, especially if you have privacy, makes interacting with people here in Achaea, very intuitive and role-playing is much more exciting for me when I can just say emote bows with magnificent grace, then buckles in pain as his hip gives out.
As voice recognition software gets better and better, mobile role-play on Achaea becomes more and more perceivable in my mind. it's hard to chicken scratch out follow rip but I can easily say
Follow rip, kick rat, kill rat...
Anyways, something to think about for everyone. I would love to hear how it works out for all. Take care.