Posting my comment here as well:

We're definitely interested in powering the internet of things and webhooks will definitely play a part of that. It remains to be seen if we need to have a generic hook channel to make that possible. I suspect there's one at some point in the future, but I think there are some better ways to address the same problems in the short term that appeal to a broader audience.

As far as getting developers on board goes: http://techcrunch.com/2012/07/24/ifttt-adds-box-and-plans-ne...

And I can confirm that there is indeed a list of channels we want to build and that a webhook channel is on it.