So much of Star Trek with its communicators, tablets, talking computers, medical technology has already happened.
No, we don't have warp drive, photon torpedoes and spaceships capable of traveling the galaxy with a crew of 500. 3D printing is coming close to fabricators, just not for food yet.
Of all the technology I would like the transporter.
It would be great to step onto the pad and I'm in the office, or at the mall, or at Roadhouse Steakhouse. A few jumps and I'm visiting my brother in Oklahoma.
In voyager one of the women has a baby delivered by transporter. I remember all the women and they were the majority in the teacher's lounge saying, "That's the way to have a baby!" or words to that affect.