Kotaku have apparently come across some new and interesting details regarding Sony’s upcoming PlayStation Eye plus new motion controller technology.

Demoed at this year’s E3 to much aplomb, hordes of people are intrigued about just what the device is capable of, and with the technology already in the hands of developers, it’s no surprise that certain aspects of the exciting concept are now coming out.

Conscious of Sony’s previous statements regarding rumble technology being archaic and for a bygone age – only for the Dualshock 3 to appear the following year – it appears such a misstep will not be revisited next time around with the new controller launching with force feedback from the getgo.  In other good news, face and head tracking functionality is already part of the PS3′s SDK (Software Development Kit) so developers can start right away and get up to speed with the feature.

Probably the most interesting of the new details is just how many of the new controllers each PlayStation Eye can track. Though “up to four” might sound sufficient now, we can envision four player games with each player wielding two controllers each and hence resulting in a requirement for this amount to double.

We’re sure Sony have a team of crack developers (crack as it good, we’re not talking about developers on cocaine here) who will continue to research the technology. Don’t be surprised to see a firmware update in the distant future that expands this tracking limitation to eight devices – or more.

The most surprising point in the piece is the suggestion that Sony may attempt to combine the new motion controller (we really need an official name for this thing) with the existing motion control features found in the Six-Axis. How would this work? Imagine wielding a sword with the new “Sony Wand” while shield duties are assigned to your trusty Dualshock 3 controller.

We tried this set-up ourselves over the weekend and we can confirm that grabbing the existing controller by the mid-section and waving it around in defence of imaginary adversaries is both impractical and a tad uncomfortable. It also garnered some significantly strange (as in, stranger than usual) glances from our better halves.