Upper limit close to the end, Full story at http://www.physorg.com/news105896139.html

[holoman]

http://www.physorg.com/news105896139.html

for ferromagnetic technology.

Its called the super paramagnetic limit.

This is where 3d volume holographic storage coming out later this year from Lucent and others will just begin their
densities and go up from there.

Ferromagnetic storage has been around for close to 60 years and is getting ready for retirement.

[shivgan3]

Very Good article
Great work
Yes nanotech can help us to make new and better storing devices and we need to find some way of of commercializing it.
nanoinvesting.webs.io/