[mazuhl]

How do you overcome making sure mobile devices don't download lots of images/interactive components they won't/don't/can't display?

[eropple]

I don't know about the person you're replying to, but I'll inject interactive components after page load (blocking them out so as not to cause reflowing, and hiding those blocks via media queries on inapplicable devices). Images, etc. are certainly trickier, I haven't found a good way to do that.