>Definitely a crucial feature, but a difficult one for any truly distributed application. I actually don't see why it need be for a messaging app. I guess it d

>Definitely a crucial feature, but a difficult one for any truly distributed application. I actually don't see why it need be for a messaging app. I guess it depends on the features you are trying to move with the profile, but I just want a single address people can send messages to. I'm happy to reconstruct the profile (name, timezone etc.) on the other device, but I'll never persuade my friends and family to use it if they have to guess which one of 5 devices I am using each time they want to send me a message, and a messaging service that my friends and family won't use is useless to me.