Only if you have a really low bar for 'revolutionary'.
Pretty much everything that's happened in the last 15 years in phones is evolution, not revolution. The iPhone takes credit for being the first to take these disjointed technologies and usage models and joining them together seamlessly in a single platform. It's more like art than science.
The technology revolution(s) that enabled that was wireless technology to start with (the radio), combined with the integrated circuit (together with radio you get things like a cell phone, and a computer), and LCD / touch technology (and now you have the iPhone). So those date back to the 1800s, 1950s and 1980s respectively.
Now what would be revolutionary would be something really new, not something old but done better / faster / cheaper / smaller. I'm still waiting for that ESP plugin that will read minds, or the matter transformer that will change my car into a robot

Right now I would settle for something that turned my Bionic into a homelink style garage door opener though, I think mine was made in the 80s!