Compare what I think is the greatest phone every made: http://r.phonedog.com/shared/images/items/1464-main-medium-b...
To what it was replaced by: http://www.dplwholesale.com/buy2buygg/2010101415181049514.jp...
The old one was tough as freaking nails. It didn't do much, but it did those things really, really well. It had a scroll wheel on the side, and you clicked and right clicked on things just by either pressing with the tip or the knuckle of your thumb.
It never, ever broke. I still have my original 7520 sittin gin a drawer in my house (unused because I don't have a nextel account anymore). The thing had fallen out of my jeep while it was moving, had been left sitting in a puddle for an hour and it just never, ever stopped ticking. (For reference, here is what happened to my iphone when it fell off the top of my dresser and landed on my wood floor: http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs980.snc4/75359...)
People were absolutely addicted to their blackberries. The interface was flawless, it synced your mail every 30 seconds, never complained, the battery never died. It was exactly the type of thing that every person working on every product being worked on should strive to replicate. It was a business staple.
Was a business staple. Somewhere along the line, RIM decided to turn their back on the people who had given them so much success and, instead, try to duplicate the success of the razr (remember when that was the hottest phone around?). They ditched the bulletproof plastic cases and battery doors that never came off for shiny, cheap plastic because it was prettier. They ditched the functional, I would say perfect interface of the scroll wheel and thumb-knuckle button for some horrible, horrible trackball that has to be replaced every few months when it either gets too smooth to work, or gets some get stuck inside of it because it was cool.
They made the phone smaller, and lighter. It didn't go in a dorky hip-clip anymore, it went in a pocket or a purse.
RIM, at least in my opinion, stopped making hammers and started making accessories. Unfortunately for them, their accessories aren't even in the same realm as apple's. As much as I don't really like the iphone, I like it a lot better than any or RIM's current offerings.