Our cars continue to get more amazing features, such as self-parking, reversing cameras and integrated GPS. Many car stereo functions, however, would be better served by an off-the-shelf tablet computer. Some US states allow test-driving of robot cars.
Speaking of magical handheld glass screens that put the entire world's knowledge at our fingertips at all times, we have a large variety of those now, but they're all incompatible with each other and still cost a fair bit. 7" tablets are cheaper than both 4" phones and 10" tablets. Smart watches and head-up displays are making consumer inroads.
Amazon wants to deliver your purchases by flying drone. Assume that pizza delivery and PO boxes will allow this, too, but not for a few years.
3D printers keeps getting cheaper, in general, but are still not regular household appliances.
Mokalus of Borg
PS - You can also buy internet-addressable light and power switches.
PPS - Facebook continues to grow into the size of a small country.