as for slide it, i use it as well as swype.
i can say slide it can be more error friendly and get this right, but some things with slide it always make me go back to swype.
both are great. i was using slideit for about a week, when i got so flustered i went back to swype, havent looked back since.
both slide it and the swype i use have the voice to text, so that works great too.