CubeWorld is an iPhone native application that’s able to show spherical panoramas. Rendering is based on a cubic map and it’s done using OpenGL.

Changes:

Added a lot of extra options (speed for autopanning, inertia and accelerometer, and added a way to switch direction for normal dragging)
Up-Down zero for accelerometer is now set when “entering” in a pano (so just be “confortable” before clicking on view)
You can zoom-out till 0.5 (instead of previouse 0.7) (it means: you can zoom-out MORE than before…)
You can use your own logo as startup screen – just put in /private/var/root/Media/CubeWorld your own logo.png file (320×128)

http://www.marcogiorgini.com/articoli.asp?art=115