One for them all.
Crossmsgr is a chat service that aims to be compatible with as many clients/protocols as possible, modern and retro alike, while also allowing them to seamlessly interoperate.
Anyone on any client can message anyone on any client, and your settings and contacts are shared.
Crossmsgr is in Open Alpha, there are going to be issues. Report any that you run into by contacting us.
Chatting, group chat, file transfer & more
Crossmsgr is a multi-protocol messenger server replacement — one account works across MSN/Windows Live Messenger, Yahoo! Messenger, AOL Instant Messenger and more, so anyone on any client can message anyone on any client.
Friend lists & groups
Winks & emoticons
Games
Nicknames & statuses