For a good overview of the Passover holiday and some of it's traditions, look no further than the $2 iPhone App, Intro to Judaism.
The app offers information, history and cultural traditions on all the major Jewish holidays.
It does a good job answering any specific questions regarding the Seder Dinner.
If you have young children in your family, they'll probably enjoy the app Passover, The Ten Plagues.
This app uses animation to tell the story of Passover with fun sound effects and interactive elements.
Short at education but big on fun is the kid's game Let's Get Ready for Passover.
In this app search for all the leaven foods, items not allowed on a Seder table before the timer runs out.
And finally anyone hosting a Seder dinner will need a good Kosher cookbook app.
Android users will enjoy kosher recipes by iFood.tv.
It offers hundreds of recipes and thousands of cooking demos to prep for the big dinner.
In San Francisco, I'm Kara [unclear] cnet.com for cnet news.