we use a device that was on the 60's star trek every day.what is it?
Mobile phones, solid state portable computer storage, pdas, tablet computers, wireless communications earpieces, teleporters, computer networks, synthetic food additives, cybernetic medical implants, satellite navigation, text to speech and speech to text systems for a start.
Mountains of Star Trek tech has become real.
Well, maybe not the teleporter yet, but the rest of that stuff.