Zoom out towards home?

[aseemk]

At Live Labs, we experimented once with different ways to zoom out. The default in all our platforms -- including Seadragon Ajax -- has always been to use your mouse location as the center of zoom, but we found that ignoring your mouse location and always zooming towards home worked very nicely, and we ended up implementing this in Pivot and PivotViewer. It might be nice to implement this in Seadragon Ajax too, though we would probably want to make it a configurable option (I'd argue that it'd be okay to make it the new default though).