Did the leaves fall off? Something not working right? Let us know how we can improve the Photosynth experience.
Is it possible to change your username but keep all of your old synths. If so how?
Unfortunately this is not supported by the site's interface at present. An unofficial suggestion is presented here, but I can't say that I've ever tried it: http://getsatisfaction.com/livelabs/topics/how_can_i_change_my_public_nickname