I've lost and found this word several times in my life, and now I've gone and lost it again.
Basically, it describes mimicry of a previous version of the same technology. Often a feature of this kind will be included to increase discoverability of functions or provide recognizable feedback. Examples include:
The digitally recreated sound of a camera shutter that plays when taking a picture on some smartphones (or the iris effect on the screen that make it look like an aperture is closing and opening)
Using the gesture of swiping in from the side of a touchscreen to access the next page of a digital document