Pin Drop - Allows users to drop GPS pins onto a map while traveling of interesting spots or review user made lists recommending the best sights, sounds, and flavors in town.
Knapsack - Plan your trip and later share memories.
World Clock - Time Zones - provides easy access to the time in hundreds of cities and adding several clock as home screen widgets.
Opentable - Reserve tables and earn rewards at over 20,000 U.S. restaurants.
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.
Waze - Provides user submitted traffic report to offer the fastest route for current road conditions.
EHU - Helps campers and caravanners keep track of the electrical output of their assorted travel gadgets to avoid overloading the circuit.
RoadNinja - Always know what is coming up at the next exit and compare gas prices at upcoming exits.
MoneyPass - Access locations of over 20,000 surcharge free ATMs either by entering an address, a zip code, or using your current location. 
HopStop - Offers public transport information on 68 of the world’s biggest, busiest metropolitan hubs.
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.
BestParking - Steers drivers toward the cheapest and most convenient garages and lots in 100 cities and 115 airports throughout North America.
Tipulator - Makes tipping easy even with split bills.
Yelp - Find places to eat, shop, drink, relax, and play and read reviews from knowledgable locals.
The Weather Channel - View current weather, hourly, 36 hour and 10 days forecasts.  Will forecast weather throughout the United States.