Free iTouch application: iProcrastinate Mobile
I know this is a REALLY negative-sounding name for an organizational support tool, but it seems to be cool. I downloaded it onto the iTouch here at work the other day and am pretty pleased with its interface. It seems to be fairly easy to link tasks to the steps required to do them!
Click here for more (and for a link to download): http://www.craigotis.com/mobile/.The app developer seems open to suggestions and reports current work on being able to synchronize to desktop organizer...and possible future alarms/reminder systems.