#2 "Is pioneering" no significa que "sean pioneros", significa que lo estan desarrollando.
www.thefreedictionary.com/pioneer
n.
1. One who ventures into unknown or unclaimed territory to settle.
2. One who opens up new areas of thought, research, or development: a pioneer in aviation.
3. A soldier who performs construction and demolition work in the field to facilitate troop movements.
4. A species that is typically among the first to become established in a bare, open, or disturbed area.
adj.
1. Of, relating to, or characteristic of early settlers: the pioneer spirit.
2. Leading the way; trailblazing: a pioneer treatment for cancer.
v. pi·o·neered, pi·o·neer·ing, pi·o·neers v.tr.
1.
a. To venture into (an area) or prepare (a way): rockets that pioneered outer space.
b. To settle (a region).
2. To initiate or participate in the development of: surgeons who pioneered organ transplants.
v.intr.
To act as a pioneer: pioneered in development of the laser.
#2 no se ve con toda claridad pero tiene toda la pinta de rajada (internamente no por fuera) se ve la clásica X de haber presionado demasiado sobre la pantalla y queda rajada por dentro, puede ser por haber dejado algo encima con peso, por una caida, o por un transporte "apretado dentro de una bolsa con cosas" pero vamos tiene toda la pinta de eso