I had a short bout of addiction playing Space Trader on my new Sony Clié S-320. It involves trading goods among different space stations to make money in order to buy a better ship or buy better equipment for your existing ship. As you get more money you can buy more expensive items and make more of a profit. If you’re on the daring side you can start drug trafficking or trading firearms but if the police ask to search your ship you may have to flee from them. It’s a surprisingly fun game for one that is so simple.