we are working on camera-based tactile sensors, which is a unique approach to touch sensing: A virtual tactile signal is derived from a camera image, using only a simple foam bar on the finger. That means tactile sensing without a sensor on the fingers!
We are interested in what you need to get out of tactile sensors. We mainly use it on two-finger grippers to get force profiles, for tactile object identification and for sensitive grasping.
There is now a development kit for ROS. It works with the Realsense camera, or any RGB camera that has a ROS driver.