Portable Offline Open Street Map
I wonder if smartphone capacities grew we would one day hit a point where most meaningful data is already preloaded on every device: A full copy of Wikidata, Wikipedia, OpenStreetMap, dictionaries.The trend goes the complete opposite direction: the devices get faster but we only use it to draw the data from our servers faster. We push all our data into the cloud, although our devices share a private network most of the time.