The ICQ messaging services allows users to send offline messages, SMS, group chats, resumeable file transfer, greetings, multi-player games and much more. The ICQ Mobile app has been available for several leading mobile platforms but Windows Phone. Finally since the Windows Phone 7.5 Mango is available to all users, Mail.ru Group has announced their plans to bring the ICQ Mobile for Mango devices.
The ICQ Mobile for Windows Phone 7.5 will support multiple accounts of different services like Google, Classmates and other to let the users have one messenger for all their contacts. The ICQ Mobile application would be available as free for Windows Phone 7 users.
The ICQ Mobile will join the several Instant Messaging applications available on Windows Phone platform but being one of the oldest applications, it does have the leverage of large user base.