I like the idea, though (even if programming is required). I'm an avid user of Tasker on Android to automate tasks on my phone and would love to be able to do that with web services without having to stand up, host, and maintain the code for doing so. I've also used Yahoo! Pipes, but it leaves a lot to be desired and still takes a programmer's mindset to use.
Bipio is geared towards the sweet spot of developer flexibility and non-developer productivity, so the problem I'm trying to solve is 'how do I give programmer flexibility to users who don't care (or have need to care) about programming'. You can get as much under the hood of Bipio as you want, or use a very highly abstracted UI, which I'm still building, to just get stuff done. A fundamental difference beyond the open API is the ability to power a web application, or be an email gatekeeper, or content aggregator etc. or model very complex pipelines easily. I have someone using it to sell .psd templates on etsy straight from dropbox, completely hands off, which was a really interesting use case (and a 30 minute setup all things considered including testing).
Given enough interest, it will likely progress to an open source model circa Wordpress, so I can really start concentrating and understanding the human interaction side of these types of services.
Thanks for the feedback! :)