The company called Yoshida Kamagasako presents to the Japanese mobile phone users a service called Spear IM, a Messenger-like service based on BREW and P2P. It doesn’t matter which phone you use, as long as your “Ketai” supports BREW it can connect to the Framework P2P Spear for mobile phones. Spear is game-oriented (no downloading of games though), so you can play live games with your friends.