I love Halloween. As kids we anticipated the night we'd canvas the neighborhood in plastic costumes, visiting house after house. Especially that one crazy lady who dressed as a witch and tried her best to scare us. We had fun, but we didn't have iPhones. Today a slew of digital treats lurk inside the App Store. Here's a selection of our favorites. There are prerequisites to Halloween fun. You've got to choose a costume, carve a pumpkin and set a creepy mood. Here are some apps to get you started (all prices are USD). Costume Decider (Free) Can't decide on a costume? Let your iPhone help. This app from GS Design features two "wheels" for you to spin; one features adjectives such as "super" and "Vulcan" while the other offers nouns like "nurse" or "granny." Flip through the 625 possible combinations to find a winner. We'd like to see a Vulcan Read More