iOS: Crosswalk is part social network, part app discovery service. iPhone owners can join Crosswalk to share the list of apps they have installed on their phones, get suggestions from the community for other apps they'd enjoy, and find out what other people have installed and discover new apps you may want to download.Crosswalk has different "communities", like developer, gamer, designer, teacher and blogger, where people who use their iOS devices for specific purposes share apps they think are specifically useful. At any time, you can browse what other users have on their phones (if they make it public) and see what other people are downloading and installing in real time. Crosswalk also gives you app suggestions based on what's trending, and what other users have installed. You can even click "check out my phone" on user profiles to browse a virtual version of their iPhones, complete with the apps on their home screens and the groups they have set up.
The service is currently in beta and free to join, and connects to your Facebook account when you sign up (in lieu of its own authentication system). When you do connect, you'll see which of your Facebook friends already use Crosswalk, and you'll have the option to follow them. Do you use Crosswalk? Have you found it useful for app recommendations? Share your experiences in the comments below.