Note that I'm not saying that's how the Kindle software is.
This started as a conversation about why adding or changing features isn't necessarily as trivial as some have assumed, with a side conversation in one of these threads about extra features potentially decreasing the stability of the software.
This is all speculation based on average software. It is entirely possible that Amazon hired only the best and that the Kindle software is a shining example of perfect software design, if only it weren't a proprietary secret so that we could all see it and be amazed.
