Water can be used to make traps, Hydrate fields, elevators, putting out lava and fires etc
Craft a bucket and Right-click on the water with the bucket.
Make a hole, 3 long and 1 deep. Then place water on the left and the right quickly. The middle will have water as well. If you take that water, more water will be created there. It will be created...
Nether Portal?
Nobody Knows. Be patient man, They will come soon. i can feel it.