Hmm. Well, I know I can be a Luddite at times but this sounds to me like something that sounds good in the marketing slicks but is a bit less glorious in practice. If nothing else, most of those wireless devices are even more unreliable than most developer's net connections; I have e-mail delivered to my cell phone (a pager substitute) and it can arrive anywhere from immediately to hours later. So one would have the same problem of not knowing for sure that the command was properly received; you'd still have to wait for the response to be sure.
I'm not saying this shouldn't be done; this sort of feature goes over well in presentations even if no-on ends up using it. But if anyone is actually taking notes here, I'll put in my vote for having simple buttons for those of us with good web connections, along with whatever more spiffy solution you choose.
