Okay, folks, I have been hearing rumors of a product designed to compete with Kent Rotchy's Oar Saddle. The Oar Saddle, for those who don't know, is a product Kent designed to provide a secure base from which to row an inflatable canoe.
SOAR has developed a competing device they call the "Row Saddle", and it's $100 - $200 cheaper than the Oar Saddle, depending on which Oar Saddle you're looking at. HERE'S A LINK to a writeup on the product, written by its designer, Larry Laba (the owner of SOAR Inflatables).
While the Row Saddle is bulkier than the Oar Saddle, the fact that the cost of the unit is considerably less will certainly get the attention of those purchasing a rowing setup for their inflatable canoe. I should also mention that both units will work on some rafts as well, eliminating the need for a full frame in limited situations.
Note that in whitewater situations you will want to run your raft with a frame that offers an integrated seat, oar stands / pins, and a foot bar. Collectively these three items are known as the rowing station, and in heavy water they must be rigid for the best efficiency. This applies to both inflatable canoes and rafts.
It's nice to have another option! I'm attaching a photo of the Row Saddle below.