If a Linux phone could be dealt with and customized like the computer OS - I think a lot of Linux people would jump. That's still a minority. But if customization was easier than rooting and couldn't brick a phone, probably a lot more would try it.
I think some are really getting annoyed with the "walled garden" approach. You did notice that on ICS you could disable the "crap" apps you didn't want. That means there must have been a lot of complaints, surveys, or whatever for Android to allow that. These people don't really want root, just control over what's on the phone and how it works.
Before that's pooh-poohed - it's possible. There's a camera app called CHDK that runs from the SD card, gives you more control, but doesn't mess with the camera software itself. If you remove the card, the camera reverts.
Sent by UFO