Did Amazon's Social Networking Injection Just Kill the Kindle's Killer Feature?

So Amazon revealed the details of its Kindle firmware update for May--a doozy if you're into reading e-books and social networking simultaneously. But with the Kindle's main charm being its status as a single purpose device, did Amazon just screw the pooch?

The Kindle firmware 2.5 has two new bigger-size fonts and better font "sharpness" which is a boost to its readability and accessibility, but the big take-away is the social networking hooks dotted throughout the code. This means you can...