I just came across the Kreg MortiseMate, a knock off of the Domino. More accurately, a knock off of some home-grown mortising machines.
My observation:
1. Cheaper. $300.00 vs $1,700.00
2. Slower to use. From the videos it appears to be much slower to use.
3. Have to bring the work to the jig. For larger pieces, you cannot bring the jig to the workpiece, a huge disadvantage.
4. Kreg designs are typically well-thought out and competent.
I have a Porter-Cable pocket hole jig. An excellent piece of equipment. More efficient and sturdy than others I have seen. But it is big, bulky, heavy and has provisions for permanently mounting on a bench (or better) on a wall. I had to buy a small Kreg jig to use for applications where I could not bring the parts to the jig. The MortiseMate seems to suffer the same disadvantage.
It is not clear to me if it can use the standard Dominoes or if Kreg-specific tenons are required.
It is interesting. Kreg has a very wide exposure in the retail environment. I suspect it will do well based on the price and the Kreg name. It does not seem like a replacement for the Domino machine however.