Microsoft has released a mobile app named My Xbox LIVE through the Apple App Store for the owners of their Xbox 360 gaming console who also owns an iOS device.

The app is compatible with all the three iOS devices iPhone, iPod touch, and iPad but requires iOS 4.3 or better.

App description:

Take your Xbox LIVE experience wherever you go with the My Xbox LIVE app. Track and compare your achievements, connect with your Xbox LIVE friends, and change up your 3D Avatar. Review all your recent great games you and your friends love to play and compare achievements with them. Jump into our games hub to learn about the latest LIVE games and apps. Access Xbox Spotlight feeds; get breaking news from Xbox LIVE, game tips and tricks, gamer spotlight and much more.

Features:

Read and send messages to friends
Manage your friends list, invite new friends
Read and Edit your full LIVE profile (name, bio, motto)
Change your avatar features/items with the avatar closet
View and compare your achievement progress with friends