Strength is a task specific/ alignment specific quality.
There are many different strength factors such as Endurance Strength, Flexibility Strength, Speed Strength and others.
Many people would say Strength is the most important factor in adaptability for new movements and sports, and for success within certain fields. Truth is that coordination is also just as an important factor for the ability to adapt well to new movement patterns and types, and both should be directly addressed for general adaptability.
Some patterns of strength will translate to other activities better then others. For the purpose of some activities, strength in relation to body mass (Relative Strength) will be the determining factor. For other sports it will be maximal strength, or the ability to produce strength in regardless of body mass.
Another big factor is the pattern of muscle recruitment, some body alignments within certain over all planning, will give the types of strength that could translate easier to many activities, where other types of strength might have a more narrow application. The best type of strength development for conditioning purposes would be the type that makes the closest mimic to the aplication of it.
The progress I've been seeing is still at an early phase and there is still lots of things to learn, I been seeing a growing awareness for balance in the practice in order to avoid imbalances that lead to injuries. That is a blessed direction, which deserves much more work. Another thing I've been noticing is the ease with which people adopt to the new pattern, Majority of people are all looking to acquire the same strength skills as road blocks, while there are so many other great skills to acquire that are worth the while (if you look at gymnastics where we take many of these strength skills, not everybody is a rings specialist). For example, look at the Thomas flares from Gymnastics, I have hardly seen fitness people working on that one, many people would like to develop great straight arm strength and are approaching the gymnastics rings for it. But how about static explosive strength under full body load, landing on the elbows for the intensity you only get with the Thomas Flares.
It is a big picture, there is a lot to be able to think with it, everything is individual, and there is much more material to explore then what we have seen so far.
We live in an exciting era, where we get to see where the fitness industry is being lead to. It has a gynormous potential to effect people's approach to training, and it's place in our lives. To my view it should be the answer for the "boxed" (as in a box) lifestyles many of us are living, and not just another "boxed" necessity.