I’ve loved the single player version of Mah-Jongg since I first found Nels Anderson’s version. Many versions later, I still love this game. And now I have it on my iPAQ thanks to Christian Morawietz’s Smart Mahjongg which was designed specifically for Pocket PCs. And best of all, it’s free (for personal use)!
Version 1.0.1890 just came out and is available in both English and German.