Waze is a social GPS navigation app that offers ridesharing and gaming.

People who own an iPhone have the possibility to turn their phone into a GPS device thanks to a slew of apps. Among them is Waze, an iPhone app that provides both turn-by-turn GPS navigation but also adds a gaming element that let drivers share their position and time, or alert one another to speed traps, construction zones and traffic tide-ups. The utilitarian nature of the app aside, Waze has always been a fun and useful way to get free turn-by-turn directions right at your fingertips and share very valuable traffic and travel information with other drivers and friends. Now, the app has updated to add groups and social features designed to help commuters and potential carpoolers find a ride and share empty space in their vehicle. Among some of the app's new features are the ability to create "driving groups," or groups of people who all commute from the same area every day, or for fleets of drivers who drive together from place to place. For instance, the app is useful for commuters looking to organize a ride-sharing program at their workplace, or for a group of friends taking multiple routes on a road trip to see which route is fastest. Additionally, groups can be used for common interests as well as activities, like drivers sharing the cheapest gas stations in their area, affordable parking in popular downtown neighborhoods etc.
The app also offers drivers special achievements for performing certain actions like sharing information or starting a group. The app is still free and the new version is available now in the iTunes App Store.

For more, see AppScout.com

Gowalla.com is a tool for sharing travel tips and adventures.

A new mobile app called Gowalla at Gowalla.com, promises to be a combination of Foursquare and something where serious travelers can share travel adventures or tips. According to its founder, "Gowalla enables its users to share their everyday ventures as well extraordinary places and events of their lives; in other word, to inspire people when they're traveling."
Available for the iPhone, Android, Blackberry and Palm smartphones as well as the iPad, Gowalla encourage people to take pictures with their phones and save them in the service in organized categories such as trips or specific sites. As with Foursquare, users will have their passports stamped when they check-in or for the trips taken.
It integrates smoothly with Facebook and Twitter which will allow for automatic posting of users' whereabouts on those sites. Users who want to stand out, can create their own trips and share them with the rest of the users on the site.
In the feature, Gowalla is looking for to use an editorial team to choose some users' generated content and promote them as featured trips according to pcmag.

For more, see pcmag.com