I was wanting a better handheld chess computer so ,after some research, decided on a pda running hiarcs chess engine. It is great and I'm very happy with it. My question is : is there software that I can use with the palm operating system on my new pda to study tactics such as the Pocket CT-ART for windows mobile 2003 (SE) operating system. If there is, where can I purchase it? Thanks for any and all suggestions.