Well Jack says he likes it so I might give it a try, but I tend to agree with the above comments. I can swype through most words pretty fast. A lot easier then having to open a menu of icons, learn/remember where there icons are (beyond the 8 on the initial screen), remember what phrase is associated with what icon.
Might be a good addition for technical terms, but swype has the ability to add words to the dictionary is pretty good at recognizing when you swype them out.