peevee1: Sony DT 16-50mm f/2.8 SSM costs $700-$800. Panasonic wants $1300 for the equivalent 12-35, which also costs less to make (less glass, less surfaces to polish)? I am very disappointed they decided to go this high-margin/low-volume way. Especially given the fact that it allows to extract higher profits (compared to high-volume/low-margin way) only for "status" goods, and the X brand lens certainly does not carry any status. Incompetent marketoids.
peevee1, the Power OIS is somewhat new and represents a degree of research and development over the previous Mega OIS. Power OIS is supposedly better at dampening low frequency vibrations.