Filed under: Desktops, LaptopsIt's been in development for nearly half a decade, but this year at Microsoft's TechFest R&D extravaganza the company is finally lifting the curtain on its research-oriented Singularity OS. Let's just be clear from the get-go, though: while it's is available for immediate use, Singularity is nowhere near anything you'd replace your desktop OS with -- the sole intention here is to test out futuristic new concepts in application interaction, microkernel architecture, and so on -- so don't expect to hear Microsoft hanging up the Vista apron or anything. But for the turbo-geeks in the crowd, the Singularity Research Development Kit (RDK) 1.1 is already available for download for academic no