A new video has surfaced on Youtube showcasing new capabilities of an updated version of TouchFlo, first popularized by the HTC Touch. This video is demonstrated on the new NTT HT1100, but it is unclear yet as to whether current HTC Touch owners will receive the upgrade for free.
You can see that the person handling the phone uses circular motions on the interface to zoom in/out of a picture application.
http://www.youtube.com/v/KREH7frOLa0
I hope this finds its way into the HTC TyTN II as that is the device I have my eyes set on!