Packing Pro - Enter destination, length of trip and who with and it will provide a list of what you may need.
Perfect World Clock - Provides easy access to the time in hundreds of cities adding several clocks as home screen widgets.
Schemer - Google’s test crowd sourced travel guide.  Users leave recommendations for things to do in their city and visitors can add to a to do list and check off as they go.
Livingsocial - Find 50% off restaurant offers.
Ski & Snow Report - Get the latest ski reports with detailed trail maps.
mTrip - Provides travel guides around the world, offline maps & navigations, personalized itineraries of visits, and trip journal and sharing.
Dineoutcheap - Gives diners a fast and easy way to find deals.
JetLag Genie - Gradually alter your sleep habits before a trip to better deal with jet lag.
Knapsack - Plan your trip and later share memories.
Air Sharing - Turns your iPhone into a wireless hard drive, allowing the user to quickly load documents at the airport that can be viewed in flight.
iMovie - Provides best option to shoot and send videos back home. Soundtracks and shot transitions can be dragged and dropped to create movie postcards.
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.
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.
RoadAhead - Find the best exit ahead on the highway to meet your travel needs.
World Clock - Time Zones - provides easy access to the time in hundreds of cities and adding several clock as home screen widgets.