I'll grant you that sometimes there's just such a cool tech that you gotta hammer your head against the wall until you find something worth using it for. And sometimes maybe that creates something awesome (though I can't conjure anything at the moment.) I think that's usually a money-loser, and someone else building something like 140 character messaging ends up making the money.

In general though, I believe solving real-world problems with whatever tech is available creates the most value. (And I mean real value, not some numbers on a ledger that don't mean anything at all.) That doesn't mean tech for tech's sake isn't interesting.