
What's next? We've come from the floating floors that are glued together to the so called click together floors and now locking...no glue, no nails...no clicking.
I remember about 15 years ago Robbins had a product that made the installation of the skinny 2- 1/4" strip flooring faster. Two boards were attached to one another similar to a longstrip type looking floor. The benefits were installing the floor twice as fast. Instead of nailing every 2- 1/4" wide board you were effectively nailing a 4- 1/2" wide board. Big time saver, but it didn't last. I don't know what happened to the concept.
Big difference from nailing those skinny strip floors. Though I've never had the privilege, 1- 1/2 " wide strip floors were popular at one time. Imagine hand nailing those floors!
There are some guys in North Carolina that have an interesting idea with solid unfinished flooring. Considering it does take quite a bit of time to start and end an installation when you get near walls they came up with an idea of three boards connected to one another, cutting the labor time drastically.

Why not, there's carpet that can be installed in a similar fashion. On the right are carpet tiles offered by Lowes. Could it be a matter of time we may see something similar with hardwood flooring?
Puzzle Floor is interesting, but how many are clamoring to the idea? If it wasn't a gluedown only type of installation I could see more popularity with the do it yourself market. More on Puzzle Floor.