Originally posted by hjoseph7 although some people don't think of this feature as so gimmicky.
That part is correct.
Perspective control on the OMD EM-1 does look interesting, how well it really works I do not know though. And it apparently only results in a jpeg file not RAW as far as I can tell. It is hard to tell how much shift is available or even if it is more than provided by Pentax. Would be interesting to see a comparison of the two implementations to see how much difference there is.
The same thing can be done in PP with the loss of some pixels of course. It would be a nice addition to Pentax though. I would think it would not be hard add to the top control dial as the functionality is already in the menu.