Knapsack - Plan your trip and later share memories.
Opentable - Reserve tables and earn rewards at over 20,000 U.S. restaurants.
Foodspotting - Focuses on specific dishes with user generated recommendations.
Hailo - Uses cell phone’s GPS to make cabs come to the user.   Available in six US cities/15 worldwide.
TravelSafe - A database of emergency service and embassy phone numbers for almost every country.
Evernote - Take notes, capture photos, create to do lists, record voice reminders, and make these notes completely searchable. Users can combine and share travel notes.
HearPlanet - The world’s largest audio guide pulls information from Wikipedia and its own database. Similar to audio guides handed out at museums.
BestParking - Steers drivers toward the cheapest and most convenient garages and lots in 100 cities and 115 airports throughout North America.
Google Wallet - Send money from anywhere to a friend in the US who has an email address.  Store loyalty programs in Google Wallet and leave the plastic cards behind.
Google Translate - Translates user’s words as they are spoken into a device’s mic. Has a database of 50 languages.
AlpineQuest GPS Hiking - Comprehensive orienteering maps come complete with contour lines.
Google Maps - Accurate GPS enabled maps along with voice navigation.
FlightTrack - Follow international flights with detailed information on departure gates, delays, and cancellations.
Yelp - Find places to eat, shop, drink, relax, and play and read reviews from knowledgable locals.
Livingsocial - Find 50% off restaurant offers.