All of the digital backs can take advantage of Schneider Electronic Shutters. Only Hasselblad and the older Eyelike backs (including the e22 with Eyelike Capture Pro software) currently allow for complete operation and control from the software (not sure about Phase One).
In addition, neither Hasselblad nor Eyelike digital backs require the clunky remote controller, instead the solution is only a combination of cables that connects the back to the computer.
While the remote controller can be a benefit because then you have more control at the camera location, some prefer to not deal with the extra remote controller. The Hasselblad solution does have a little box the size of a matchbox that connects all the cables and has one red button that allows you to open and close the lens. And if you only needed to release the shutter, there are remote releases that allow you to trigger the Hasselblad software to fire the shutter, so other than adjusting exposure, you wouldn't need to touch the software at all anyway.
Steve Hendrix
www.ppratlanta.com/digital.php