Happy Measure 3D Ruler

'Happy Measure' is a technology demonstrator by Deutsche Telekom Laboratories available in the Android Market: https://market.android.com/details?id=de.tlabs.maren.furnishing.client2.android

It is freely available to anyone and shows the opportunities of marker based augmented reality. Please check it out and provide us your feedback in terms of usability, additional usage scenarios and general impression. Have a look at our facebook fanpage:
http://www.facebook.com/TLabs.HappyMeasure