Talked to the dude behind the counter at Cabelas this evening. He said they had received one and it sold right away. Said it was a little smaller than the 3 inch Kimber 45, but still way bigger than a Kahr. If so, I fail to see the point. YMMV.
SOLO is 5.50" X 3.90" and weights 17oz.
PM9 is 5.42" X 4.00" and weights 14oz.
The SOLO is .30" wider because of the external safety.