Astraware is an outstanding developer of games for mobile devices. They have many big successes, including the famous Bejeweled and Bejeweled 2 games which have addicted many fans like myself.
They have recently picked up on the Sodoku craze and published some very slick versions available in a
PalmOS version and a
PocketPC version.
There are other programs out there, but the Astraware software seems to be the top of the line versions. They are intended to be appropriate for a wide audience from novice beginner to advanced expert. There are tons of free puzzle packs available, and they support multiple languages. Looks like a very nice title.
(Thanks to Alison at Astraware for the news.)