What does the Bible have to say about creamation?

Believers are way more concerned about where the soul/spirit goes...Heaven or Hell?

Specifically nothing, but it does respect the mortal remains. In the Eastern Orthodox churches; Russian, Greek, etc cremation is not permitted if the deceased is to receive the full funeral service. Cremation is considered a violation of the human body, which is the temple of the Holy Spirit.

In countries where land is limited, the remains are unearthed after 3 years (no embalming so they decay readily) and the bones are cleaned and stored is ossuaries. Greece recently allowed cremation over the objection of the church. The only exception to cremation is if the body is diseased and poses a health risk to others.

Nothing whatsoever. But Jesus did say that the Holy Spirit would guide His Church into all truth; and that whatsoever His Church binds upon earth is bound in heaven; and that whoever hears His Church hears Him. And His Church says that cremation is acceptable. So that settles it.

The Bible says nothing about "cremation," but it does say that the ody is going back to the dust (Genesis 3). So, cremation can be touched on in that passage, to say that, since the body is going back to the dust anyway, cremation is just speeding up the process, so it's perfectly fine for cremation to happen.

What difference does it make? Are you ancient sheep herding Hebrew?

The Hebrew tradition was to bury, but there is nothing in the Bible that says you have to.

I believe it is pretty much silent on the manner in which one is to formally deal with a body that has passed.

Not much it can say with the invention of nukes and explosives.

it doesnt to my knowledge

It is too creamy.