Questions Over TPACK, Net Generation, and Teaching and Technology-Apple

In TPACK is it just describing that teachers knowledge isn't enough to effectively teach students and they need technology involved to help that?

TPACK is to help make a perfectly balanced teacher who knows their content

Net Generation: Exposure to how new technologies can be used in educational environments is particularly important in teacher education courses, because preservice teachers cannot be depended on to independently make the connection between technology, pedagogy, and their subject matter.

Teachers constantly need to keep up with the new technology in order to be fully prepared to teach our future generations.

Do lots of schools send their teachers to seminars to keep them updated?

Teaching and Technology: are we wasting money on all the new devices we have in school?

Does this enable new ways for people to learn and work together?