These updates build on other tablet-centric features introduced this summer, when Google increased the size of image previews, introduced continuous-scrolling thumbnails, and more rapid loading of thumbnails (which we imagine was needed to make continuous-scrolling a practical reality).
The new features are available in over 40 languages, and are live right this moment, so point your fingers towards Google Image Search and try them out yourselves. As tablets continue to eat into the sales of traditional PCs, we should see many more optimizations of this sort for mobile touch-screen devices.
Don't have a tablet? You can still enjoy the video of the improvements:
source: Google via Tech Crunch