Ashrem Bayle
Explorer
Longtooth's Battle Boards are similar to Tact-Tiles, but there are some differences.
For one, they are not compatible with the original Tact-Tiles. Also, I believe they are made out of particle board, or something like it. I've yet to actually see one to say for sure and don't really feel comfortable saying much more because of that fact.
But to clarify, Longtooth is using their own name and not the "Tact-Tiles" brand name. And legally, they can do exactly that.
Best of luck to them I say. We don't mind competition as long as it's honest and ethical.