This and the android device fragmentation (yes, also for resolutions and pixel density) is what pushed me to start replacing raster images for SVGs in all my web and hybrid mobile apps. I guess being quite good at Illustrator helped me to make the jump.

I don't bother using jpg's, png's of gifs anymore. Whenever I can, I use vector designs exported to SVGs (backgrounds, custom iconfonts, logos, shapes, animations, etc...)