windows live messenger app on xperia

[avantiel]

I have a galaxy tab the very first model. I was surprised when my friend showed me his new Xperia Neo and it had a Windows Live Messenger app pre installed, and its an official one it seems. i searched his market, and i didnt see it in his My Apps section. How is it that Xperia's have this app but not Samsung?

 

[avantiel]

anyone can help me clarify this?