Previously at the Google I/O conference Google announced that they will be bringing the Android Market to Google TV. Today they've announced a preview of the Google TV Addon for the Android SDK which allows developers to develop Android apps for TV, optimize existing mobile and tablet apps for TV and distribute them through the Android Market.
There will be an upcoming OS update to HoneyComb and this will make all Google TV devices to be Android compatible. It is important to note that the Google TV Addon does not have all the features of Google TV but it allows the emulation of the Google TV and build apps using the standard Android SDK Tools. It'll be interesting to see what kind of applications will be brought to the big screen, More details at the source link below:
Source: Google TV Blog