I have found two different types of free software to be very easy to use to develop these types of environments. The first is MSCAPE: http://www.mscapers.com/. This was created by HP as a pilot for their PDA’s. This software is great to use and has a variety of games and a small community of developers behind it; however, they are closing down their site next March. You will still be able to download their programs and games, but they will no longer be supporting the software. I created “History Detectives”, which is a game that I used with a small group of students quite successfully last year and am gearing up for a full class pilot of this game next month. A copy History Detectives can be found at this address. http://www.mscapers.com/msin/ABA0000579