I'm in agreement with Bob about small. I've dove with people using bigger strobes, and am away glad that I don't have to try to manuver something that big into some of the tight spaces that I'd like to shoot.
Ike has two sensor. I think one of them, the older one, just allows the strobe to follow the internal flash: flash on -> strobe on, flash off -> strobe off. So the TTL function depends on the camera itself. The new one has strobe duration settings to control exposure. Neither is what Foliver is looking for, something like the S&S Auto 90 with TTL built into the strobe using a sensor to detect the reflected light from the subject.
It's a bad idea IMHO even if you can get the sensor near the lens. At best, it'll be clumsy to use for one strobe, and really bad for 2 strobes.