Nimbuzz Mobile lets you call, chat, message, and send files on the go, for free. It combines all your buddies from Skype, MSN, Yahoo, ICQ, AIM, Google Talk and more. One login, one contact list, all accounts.
See who´s online and where, call/group-call, chat/chatrooms, offline messaging, send photos/music/video, voice messaging. Nimbuzz Mobile free to download and use. Nimbuzz will not charge or bill you for anything. However, since Nimbuzz uses your internet connection, incremental data charges from your provider will apply. We therefore strongly recommend to use the mobile client only with a flat-rate data plan or free Wifi connection.
You can download Nimbuzz for Windows Mobile phones from here.