TravelSafe - A database of emergency service and embassy phone numbers for almost every country.
Wi-Fi FInder - Directions to your nearest source of wireless internet. Comes with an offline mode so that users can download maps.
Touchnote - Send real postcards using cell photos.
Seatguru - Shows the best seats on every plane and where power ports are located.
XE Currency - Quotes live currency rates.
WhatsApp Messenger - Provides the ability to send data (including pictures, videos, sound clips, and GPS tags as well as text) via Wi-Fi for free to people anywhere in the world.
Yelp - Find places to eat, shop, drink, relax, and play and read reviews from knowledgable locals.
Hailo - Uses cell phone’s GPS to make cabs come to the user.   Available in six US cities/15 worldwide.
AlpineQuest GPS Hiking - Comprehensive orienteering maps come complete with contour lines.
myLanguage Translator Pro - Translate text into spoken voice.
JetLag Genie - Gradually alter your sleep habits before a trip to better deal with jet lag.
Google Goggles - Search by taking a picture. Users can point their cell phone cameras at paintings, famous landmarks, barcodes or QR products, or popular images. If Goggle finds it in its database, useful information will be returned.
Google Translate - Translates user’s words as they are spoken into a device’s mic. Has a database of 50 languages.
Instagram - Coverts photos into works of art. Instagram gives photos professional, antiquated, or artistic looks. It makes sharing pictures across social media networks easy.
Lemon Wallet - Allows user to store a digital copy of all cards – ID, insurance, loyalty, and payment card, so that they can be accessed whenever needed.