possible application using 100 gbps line

video download application - can download many video at faster rate in one times. 

can send and received data (emails, etc)

download games application - highest speed to download, larger files

games online - there are no obstacle

can copy a complete Blu-ray disc in fraction of second - because less compression is needed to deliver the content within the available specs 

faster video chatting - (skype,VoIP, ooVoo)