There's a fantastic interactive animation on Google's home page today, with various mouseover areas triggering actions.
I initially thought this was Flash but it isn't - all the frames are sprites (PNGs) and a mix of CSS and Javascript is driving the animation.
You can see one of the images at [
google.co.uk...] - and from this you can see that the sprites are shared.
Does anyone know of any software that helps you do this?