As more and more companies start adding MIDI 1/8" Jack inputs to their modules or standalone devices we have started to lose the MIDI thru... There is also the problem of two different standards with MIDI on 1/8" jack... Step up Delptronics, with their MIDI Thru module, this solves both of these problems.
More info at Delptronics
We hook up a bunch of synths - now where's my cape?