Although I dont believe they have made it available yet, I have seen at least 1 person demoing SWYPE on their IPAD. Not sure if anyone else here uses this technology on their Android based phones, but I gotta tell you, im not sure how I lived without it on touch based screens.
I can type 60 wpm no problem on a keyboard, but if its pad based, this is certainly the way to go. Hopefully you will see it in 2011 available for apple products.
http://swypeinc.com/news.html