For the people who have the xbox360 Messenger Kit (i.e. - Chatpad), a driver has finally been developed by the modding community allowing it to be used on the PC.
Yes, this means it works with FFXIV! The driver features full keyboard functionality along with mouse support. That's right - I'm using it to type this message right now.
The link is located here.
To summarize as Andy Samberg would:
"I installed the driver
typed some stuff
and
I
JIZZED
IN MY PANTS"
Indeed.