The people who are for a long time on the internet perhaps remember the ICQ program to exchange online messaging. You had a number that identified you and your friends.
The ICQ was a hit in the early 2000s, his distinctive sound when a message arrived became famous for many years. Over time the ICQ eventually lost space for Microsoft's MSN that was also discontinued.
ICQ now wants to enter the mobile app market competing directly with the famous WhatsApp of the Facebook.
The application showed that it has good potential, it works through your phone number and besides sending messages you can share photos, share your location, integrate with other messaging applications such as Google Talk and Facebook Messenger.
The most interesting feature available is the possibility to send a message to a friend who doesn't have ICQ, the ICQ application sends free SMS message. See the ICQ official video:
ICQ is available in several platforms such as iOS, Android, Windows Phone, Symbian, BlackBerry, Bada, Java, Windows Mobile and also for PC and Mac. Visit the official ICQ website.
Have you ever heard of ICQ? =)