Earlier quoted context omitted.
> then people won't buy Dell phones But why must the software be explicitly tied to the hardware? We don't buy desktops or laptops that way. I periodically upgrade the ROM in my smartphone and the result is amazing. Why should I have to toss a perfectly good piece of hardware just to get software improvements?
Sorry, I deleted my comment because I felt it wasn't very useful. The software needs to be tied to the hardware because the carriers are completely incompetent at software, and are generally unable to expend the effort to QA all the crapware they have put on the phone for a new OS; they also have a financial incentive to force you to buy a new phone from them as often as possible.
I agree that both manufacturers and carriers are incompetent at software -- that's probably why my phones run so much better and faster with a custom ROM put together by some hacker in his basement. In my opinion, if the software wasn't tied to the hardware the result would be better.