It's worth noting, though, that as RIM has attempted to crack the broader consumer market for smartphones they've been less successful in designing devices that maintain that optimal BB experience and expanding to additional functionality. That, too, is not surprising.
One of my crackberry addicted colleagues returned his new Droid after two weeks. I don't blame him. For the uses he has for a phone, he really couldn't top the blackberry. Of course, he also carries a GPS when he rents a car, an iPod to listen to music, and a netbook for surfing the internet. Different strokes.
RIM made a HUGE mistake. They had iPhone envy. They had he ability to capture the consumer/prosumer market by create the Treo (now Pre) replacement with the Dakota, which is many years too late. The OS hasn't changed much and is still built for a trackball experience. The storm needs a completely different OS but what resulted was only gradual, which fits a Dakota but still not the Storm 2, which really has no place and should not even be called a "Blackberry" for the purpose of this conversation.

I got a Droid ONLY because of the hardware keyboard. IMHO there is no substitute for professional emailing. After a really rocky start, the keyboard got much more usable but, as I said, the BB series (bold, curve) are the most efficient and fully featured PIM around and reliability comparisons to a Droid are a total joke.
I've missed a few phone calls because (a) the Droid didn't pick up fast enough when something else had it engaged, (b) my hands were a little greasy and I didn't complete that INANE swiping that you have to do ALL THE WAY across the screen. The Blackberry is art in comparison - in the years I owned one that hardware button will take that call. What a concept.

And the OS is built to be protected and for reliability. I have NO idea why so many of you are pulling batteries which means (a) you are talking about a Storm or (b) you have a defective device or (c) there might have been some app, rare as it may be, which will take down your phone.
I'm no Blackberry lover. After having an amazing Treo, I reluctantly got used to it and appreciate it for what it is. But by no means is a Droid a full equivalent. Each is a tool that works best for something. IMHO:
iPhone: Idiot proof but inefficient. For those people who want to have limited or no desire to do much more than great music/video, phone and have modest PIM requirements. Easy to use, made to work with your sunk investment in Apple crap, lots of swiping to get things done. If you aren't always connected to the net you will lose your mind. Great apps but very limited in what they do. For those who can't read a manual it's great. But if you want to do more, it's horrible. Extremely poor email. Need to rely on Apple produced items is HORRIBLE if you find their products limiting, e.g. email, calendar, etc. They will eventually get them improved but the market is always another step ahead.
Blackberry: Ultimate business tool for the power emailer. Until they come out with the Dakota, strictly for someone who does tons of email, limited/occasional web browsing, needs power efficiency and decent messenger for constant live contact between other BB owners, e.g. at work. Futzing-free dialing as opposed to the Droid (just dial on the keypad and you're in the call... it's a blur compared to the Droid.) By far best with battery. Works well with attachments, doc management, excellent when offline. Modest to very good mutimedia. Limited apps, very good but expensive. By far best with business tools and apps. Dakota will be one of the hottest selling phones if it has a better screen than the 320 x320. I think people will stand for a little wider but thin.
Droid: Best all around device. Keyboard takes getting used to but by far better than virtual keyboard devices. Big screen makes browsing and reading viewing incredible. Extremely poor multimedia. If you're looking for a device to strap to your arm, this is NOT the device to get. It's not there yet. Not nearly as reliable as others but "sufficient." Tons of apps, ranging from terrible to mostly average and some above average. Still young API and apps are cheap. Has benefit of "Google phone" if you've decided to run your entire life around Google. Virtual Keyboard devices, IMHO, make for more expandable iPhone replacements. Totally useless for me but others who don't email as much will find it more redeeming. Unless rooted, sucks the battery like our government officials on public funds. I get only a few hours of use with brightness at low settings. Not for people who cannot charge often.
Pre: Won't be around in 2011. Too bad. Should have been the best phone if it came out earlier and Palm didn't think it could pull the "incremental release" shtick it always does and just put out a great product each time.
Windows Mobile: Hard to say. Not enough info yet but they better release something good... and soon. Was very popular for people who used Exchange at work.
Symbian: N/A in the US.
Just IMHO.