Hi All just looking at Microsoft Synth today. It is a kind of 3d photo maker thing. You basically take a series of photos eg of your bedroom and photosynth reads them all and makes them into a 3d environment you can navigate around.
go to http://photosynth.net/ to download the program.
once you download it then you can view the examples.
Check out the demo below
http://photosynth.net/learn.aspx
Go to photosynth