SocialBox Live : message xbox live friends with-out gold account
http://www.1800pocketpc.com/socialbox...
SocialBox Live allows you to find other Xbox Live gamers on Windows Phone, so you can compete on the leaderboards!
Features
Find other players' gamertags
Message players, IM
Push notifications/live tile
Metro interface
SocialBox is the first and only app on Windows Phone that lets you find other WP owners with the same Xbox Live games! Now your leaderboards won't be lonely, and you can enjoy the Xbox Live leaderboards on all your favorite games.
Plus, SocialBox is the fastest WP app yet when it comes to opening a new message from a push notification! Just tap the notification and the conversation will be open near instantly! (faster on newer devices)
And finally, the live tile actually tells you who sent you a friend request, and even displays new messages from your friends, so you can actually read your messages right from the tile!
Experience SocialBox Live today, and take your Windows Phone gaming to the next level!