I am not real sure where I first discovered the Palm m105 PDA. It is a simple little handheld that cost over $100 when it was new 6 years ago. It can now be found for much less today on Ebay; that's where I obtained the ones for my classroom. The m105 is a small computer that can have programs installed on it that do a host of things. My math classes have been using them to reinforce their knowledge of multiplication facts. There are other really neat programs written for the m105 and we will explore many of them this school year.