@lucounu, I don't think that the overlays are the same thing.
@ mon, She is 8, going into 3rd grade so an Alphasmart might be helpful if I can get her up to speed on her keyboarding. Her teacher last year declined to use it because DD couldn't keyboard. The teacher thought that it would have been overwhelming for her to learn keyboarding during the school year just to use the Alphasmart. I will check out Typing Instructor for Kids. DD has just been doing the free BBC typing program Dancemat Typing. I'm not sure exactly how Write out loud works. All I know is that it is a software program that is supposed to help with writing and spelling.