- Arguing over the best route to take for your weekend getaway? Pull out the Maps app or one of the many iPhone GPS apps.
- Found someone who doesn't believe that Inigo Montoya and Jason Gideon are played by the same actor? Fire up the IMDB app.
- Disagreement over when Star Wars was released (or re-released)? Head over to Wikipedia.com or one of the many Wikipedia apps.
On the side of religious skeptics are applications like Bible Thumper, the Atheist Pocket Debater, and mAtheist. For those who are certain they can convert others to faith, if only they find the right argument, there are apps such as Doubt Busters, God Tools, or Jesus Evangelism Tool by Mobile Jesus. (As an aside, I think developers of these sorts of apps may want to avoid the word "tool" in the title, or they're just asking for people to twist the meaning.)
Read on for more...