Maybe Xbounds is a nice application which can replace the HDMI adapter. However it is not available yet. I got this information from the developer
"Bounds is not available for end-users yet, as it is not an app that can easily be installed on the phone.
We are talking to numerous cell phone makers and are confident that xBounds will become available by Q3 this year."
Maybe it will never be published for end-users as long as it is not integrated into the products of the cell phone makers...