How does Apple's new wonder of the world stack up to its fat, old, slow, nasty brethren? Well, you may be surprised to learn that the footprint doesn't change that much, but in the thickness category there's simply no comparison. Take a look at the shocking gallery below and you'll see just what we mean.

Just try naming a major player in the hard drive biz not touting some sort of stupendous breakthrough to boost HDD capacity, and you're likely to come up fairly empty. Nevertheless, TDK is hopping on the ever-growing bandwagon, as it has reportedly "developed the technology to more than double the data storage capacity of hard-disk drives compared with the most advanced products now available by modifying the design of magnetic heads and disks." Notably, we've heard of similar processes before, but TDK is suggesting that its method can offer up the capability to "read and write 602-gigabits of data per square inch" while producing drives up to 3TB in size. Best of all, this all seems to be a bit beyond the drawing board, as the outfit hopes to mass produce the heads sometime in 2010. [Warning: read link requires subscription]

Although it seemed that Seagate was comfortably at the forefront of magnetic recording developments, Fujitsu is hoping that its latest "breakthrough" will add a little friction to the areal density competition. Using patterned media technology, the firm "was able to achieve a one-dimensional array nanohole pattern with an unprecedented 25 nanometer pitch," which essentially means that recording one-terabit per square inch onto HDDs of the future is now realizable. Additionally, the company also revealed a new development "involving perpendicular magnetic recording (PMR) read / write operation on random patterned media," which utilizes the soft underlayer (SUL) as the PMR media. As expected, the presenters weren't as forthcoming about when we'd actually see these achievements make a difference in our laptops, servers, and other HDD-equipped devices, but the sooner the better, okay Fujitsu?