Hi,
the Javascript viewer with the 3D CSS is working only on Apple Browsers (Safari, Mobile Safari, ...),
these is the only ones which supports that at the moment,
on the Nexus One with Android 2.2 the normal Flashplayer version will be used,
it's already working (I have already a Nexus One), partially good, partially not so good...
when the image is not too large and fits in memory the panning is smooth,
not so smooth like in the iphone/ipad viewer but okay,
the next krpano release will have some adjustments/optimizations for that case (e.g. no mouse cursor),
but the Flashplayer and Browsers itselfs there on Android is still buggy,
e.g. the Fullscreen Mode dosen't work right, the Flashplayer reports the wrong size to the app,
and there there is no multi-touch (or better only Multi-touch with
one(!) finger

) at the moment,
not in the Flashplayer and also not in the Browser (e.g. via Javascript), so the nice multi-touch zooming
isn't possible there at the moment...
more details about krpano on Android with the next release
best regards,
Klaus