If all of the sudden all technology was gone (assuming we had knowledge of that technology)... What technologies would entirely be skipped in the rebuild?
Dumb examples: there would be no period of time we would think the world was flat. There would be a very short period of time without movable print...
Conventional knowledge would still exist for the most part (assuming an approx 10 year time frame), so we probably wouldnt have geocentric delusions or anything like that.
I would guess that as far as technologies went, the internet would be designed in a much more secure manner. Also, it probably would be designed as a scalable network instead of the scale-free network it currently is.
This is a great example of how evolution can produce things that are still useful decades later, even as most people have moved on to the latest and greatest.