Hydrogen the Energy Source of the Future?

Hydrogen powered technology is a contraversial topic right now in technology. There are many good and bad things about having hydrogen become the next main source of energy in the world.
Hydrogen is probably the most ecofriendly fule avalible. Unlike fossil fuels, when cumbusted, hydrogen doesn't release any green house gasses into the atmosphere causing climate change. Instead, it produces water as a "waste". Also, you can get hydrogen by spliting water molecules into hydrogen and oxygen. Finally, Hydrogen is aproximatly 2 times as exxicient as fossil fuels.
Now for the downside. Production of hydrogen is quite expensive. In order to get hydrogen by itself, you need to remove it from a bond with another element, water being the easiest to obtain. Also, you spend more energy making hydrogen than you actually get by using it. Next, Hydrogen has to be kept in a low temperature and under high amout of pressure.
These are the good things and bad things about using hydrogen as a primary source of energy in the future.