Being able to hide data behind the interface in hyperlinks may solve the
machine's problem, but it doesn't solve the human interface problem.
Imagine that there are two Susan's who might send you Tweets/Dents or
whatever. They are: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> and
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>. Now, you get a message that looks
like this in your IM client:
Susan <http://bad.com/susan>: Shall we have dinner tonight?
How do you know what answer to give or to whom your answer will be sent?
Will you *always* remember to check? How would a non-technical person
solve this problem?
For SMS - you allow people to give other people (or accounts) aliases.
It's a bit like speedial.
As for message truncation; some services can remap an SMS to a multipart
MMS; the problem in doing so is that you can affect message payments.
Bill