How significant of a technology are you thinking of?

For example, I would guess that most video game emulators came about when computers were much faster than the games they were emulating--if it weren't the case that fast computers were cheaper than the emulated consoles emulators wouldn't be very popular. Further, I can guarantee you that computers easily have more power than video game consoles, so any emulator produced of the latest generation of console was written when computers had far more power than necessary.

So: Does a new emulator count? It's a specific technology that is developed in a fast environment. Does an old emulator count? Emulators in general aren't new technology at all. Does an instant messenger count? Predecessors existed in times when text content was a big deal, but I would be mildly surprised to hear that the original AIM (or whatever the first instant messenger program was) was created at a time when text-over-the-internet was a big stress on computers.