We recently repoorted on a Tilt-Shift lens from Sanyang and it was on display. So was a new 10mm F2.8 super wide angle lens, the Sanyang 10 f/2.8 ED AS UMC CS. This lens is designed for the APS-C format and will be available early in 2013. We confirmed with the Samyang representatives that it will be available for Pentax.
Schneider introduced a 28mm F4.5 Tilt-Shift lens called PC-TS Super-Angulon 4.5 / 28 HM Aspheric. The lens has a lateral shift of 12 mm and a tilt angle of 8 degrees. It is physically quite big and fortunately furnished with a tripod mount. It is shown above in Nikon mount but is also available for Pentax and Canon. The image format is full-frame (24 x 36 mm) so it will of course also work on APS-C.