The pre-order news of iPhone 4 saw a collapse of AT&T's online system on the very first day itself.

The news as reported by the sources states that stores are now using pen and paper to process sales after a fall in Apple's online upgrades.

In order to get free from the hassles of ordering, people are giving their credit card information to be put on a list to have a place in another line.

And all blame goes to AT&T's ordering system which according to the reports has witnessed a fall in the systems.