Shame really
I have an R500, it runs Windows 7 no problem. The only thing it could use is the ability to offload h.264 decoding to the GPU and maybe support for more than 2GB of RAM.
Toshiba have slightly lost the plot here, the inclusion of a 32bit operating system in a machine with 4GB of RAM demonstrates this perfectly.
There are loads of 13.3" laptops on sale and most of them don't cost £1600, I'm pretty sure the R500 was the only proper laptop you could buy that weighed less than 1Kg and still included an optical drive.