Perhaps. Mostly, I've been tending towards the opinion that TCP is overused -- it's treated as the one-size-fits-all least-common-denominator way to network, but is often used when it's really not appropriate. (I mean, I work with Flash, which implements *video* over TCP, for heaven's sake -- as inappropriate a protocol choice as I can think of.)

But with the world's security systems so tuned to TCP (and worse, to HTTP), the result is that a lot of traffic goes over streams that, from an architectural viewpoint are utterly *daft*, but pragmatic adaptations to the network environment. My suspicion is that we could use some alternatives at that level...