The HDTV has enhanced our lives in an amazing way. TV's were always bland and boring. When these came out, it gave the viewer a sense of life. These were around in the 90's but got popular in the 2000's.
The iPod was made in 2001 and concluded a small screen. This provided the opportunity for people to listen to music from a small device anywhere.
Blackberry was a phone that could receive emails and manage a calendar all in one place. This was amazing to the world because anyone could stay on top of all their business using this little device.
Nintendo popularized movement-based controllers by creating the Wii. This was like nothing else before and appealed to all ages.
The kindle was an e-book that had not been seen before. Everyone was used to paper books and when this came out, it opened new eyes to what technology can be used for.