I had a Droid Eris and it had a great typing assistant. While typing it would display a blue bar above the typing area with word suggestions. If you hit the correct word, just keep going. If you hit a typo, just touch the correct word in the blue bar.
The Fascinate has somewhat of a typing assistant, but it's quite kludgy compared to the Eris's. Anyone have any suggestions of a better one, paid or not?