After a very lengthy and convoluted app store approval process, developer DeskConnect's Workflow app is now available. I haven't had time to really play with it, but I was able to quickly put together a small workflow to enable me to tweet a URL title, link, and image with relative ease. That of course does not even begin to tap into Workflow's potential, and I clearly need to spend a lot more time with it, but right now let's just say Workflow looks really interesting.
Workflow requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch