Since technology makes doing work easier, we have a lot more time at our hands which allows us to do stuff, that we wouldn't be able to do otherwise. Having more time to devote to other things helps upping the level of knowledge you (and thus people in general), which allows humankind to grow faster. At the same time, we need that technology, or otherwise that progress would slow down massively. Cell phones allow for better communication between people, having fast internet and Skype even allows for people who are on opposite sites of the planet to work together on the same project. If you have a question, you can just ask some random people on an internet forum, instead of having to rely on an instruction booklet, or the infamous service hotline. Even school demands pupils to have internet access these days, to do their homework.
Granted we still have books and all that stuff, but technology makes everything quicker, so while we aren't neccessarily dependent on it, it would be a lot slower without it.