I've noticed the same. I run Dutty's roms also, so that could be it, but I seriously doubt it...
After being frustrated with myself, convinced I was somehow fat-fingering something, I figured out that all the keys except for the spacebar react as soon as the button is pushed. I.E. you hit "X", and an X appears right away before the key is released. The spacebar waits for you to release it before it adds a space.
Combine those two things with "two-thumbed typing" and I get textt hatl ooks liket his whenever i try to type too quick.