HTC unveiled an updated version of its popular Sense user interface today at Mobile World Congress with new social networking features and ways to navigate the dizzying array of home screens.
For the past year, HTC has layered its Sense technology on to almost every Windows Mobile and Android device it has built. It has been core to its three-month old multi-million dollar ad campaign about how HTC knows

This is a great post on this topic… it has some really good information. Go to this link to see more on how HTC betrayed Microsoft
http://www.coolgizmotoys.com/coolgizmotoys/2011/01/htc-and-microsoft-are-mobile-development-partners-and-im-whoopi-goldberg.html