Yeah yeah yeah..
This post will be very long if everybody will write that it's happened for them too.
It's international! We all realize that..
BUT -
It's actualy worst then I thought.
A quick search on google found that this problem was happened once in awhile for the last years.
So I guess that the real question is not: "When will it be possible to download apps again?"
But:
"When will Microsoft fix this issue for good?
Means: not good for NOW, but GOOD ENOUGH to prevent similar cases from happened in the future??"