I think that this is basically what SCTP is/was (maybe with a few improvements: I don't recall how SCTP handled client mobility). The problem, as drdaeman indi

I think that this is basically what SCTP is/was (maybe with a few improvements: I don't recall how SCTP handled client mobility). The problem, as drdaeman indicates, is that too many networks consider themselves TCP (really, TCP/{80,443}) networks, not actual networks providing IP the way they are supposed to.