It's an awkward thing to see Microsoft has released an app specially made for Apple's iPhone; the Seadragon Mobile.
Aside from the cool name for an app, I've got to give a thumb up for Microsoft Live Labs team who could leverage iPhone's capability to use Microsoft's Photosynth technology that allow users to browse large quantities of high-resolution images.
And that's not all, the free app itself also allows users to quickly zoom in and out while downloading the images over 3G network. Basically; Seadragon is the backbone for Microsoft's Photosynth, which allows users to take a grouping of photographs and stitch them together into a faux 3D environment.
Alex Daley, group product manager for Microsoft Live Labs told TechFlash the reason why they decided to give this app to iPhone, instead use it first in Microsoft's own Windows Mobile platform:
"The iPhone is the most widely distributed phone with a (graphics processing unit). Most phones out today don't have accelerated graphics in them. The iPhone does and so it enabled us to do something that has been previously difficult to do."
And I agree with Steven Musil from CNet on the last question about this great native photography app for iPhone only: "So where's the Windows Mobile version of Seadragon?" ;-p