I actually plan to build this in PHP/MySQL on my personal web site, I don't have any specific release date, because I work on it in my spare time.
I will gather reviews date and grab the price from pricewatch (or something like that) and will make charts based on near real-time data.
I want to do this to learn more of PHP, MySQL and REGEX. My primary job, is in telecomm, I program for myself and for free!
Would you buy a potato powered chipset?