Hello
Is it possible to add location( GPS) on a existing panorama made without location with an iPad? m'y photosynth App says it Is possible on thé photosynth.net web site ... But i don' t fond how?
Tanks for you help

Hello, FabriceLambert, 

The photosynth and panorama editor on the website is a web app written in Silverlight. Since Apple does not allow Microsoft to make Silverlight for iPad, you will need to use a laptop or desktop computer to use the editor on the website. 

After signing into your account here on Photosynth.net, go to your panorama's 'View' page and click the [Edit this Panorama] button and you should see the Location tab on the upper right. Be sure to click [Save] when you've updated your location information.