I won't list what it does because there are already plenty of reviews doing that.
So I'll just write about things which I have noticed and am concerned about in the hope that I am being helpful.
I chose the Bold 9000 because it has a wider screen than the other models which were available at the time [Sept 2009] - but I wish I had chosen a model which wasn't so wide. Why? Purely because I am used to texting with one thumb and because the screen is wide, so is the qwerty keyboard, so I can't quite reach across the whole keyboard with one hand. My hands are small, so I should have thought of that, but I didn't. I just thought that a wider screen would be best for viewing You Tube clips - which it is, but now I have to use both hands to type, which is ok, but I would rather be able to type with one. So the large screen which I thought was a plus factor has turned out to be what I don't like about it. But maybe that's just me?
The calendar thingy annoys me. I am used to Nokia phones and their reminder facility which allowed me to set a reminder to notify me on a certain date at a certain time. That system was flexible. The Blackberry system is not. Click on the calendar icon, choose the day you want to set a reminder for and you get a list of times [in hourly intervals] from 2am to 8pm.
The reminder alarm notifies you fifteen minutes before the hour you have chosen. Which is fair enough, but what if you want to remind yourself to do something between 8pm and 2am?????? I appreciate that the Blackberry is designed for business people and the reminder is really to notify them of the timing of a business meeting or appointment, but what about the rest of us? I would like to set reminders to myself for whatever time of day or night I choose. My forgetfulness does not stop between the hours of 8pm and 2am!
I have knocked a star off the rating because of this. Every other mobile phone I have owned has allowed me to set a reminder at any hour I chose. It never occurred to me that a Blackberry would not have a function I assumed was a basic one on every phone.
Having access to emails is very useful. Especially because if an email has an attachment, you can read the attachment [if you trust the sender, of course.] And setting up the Blackberry to receive emails is easy. But, bear in mind that if you set up hotmail or live.com email addresses on it you will have to re-validate each of them every 90 days if you want the Blackberry to continue receiving emails sent to those addresses.
No one told me that. The instruction booklet makes no mention of it either. So when I received emails from Blackberry asking me to re validate passwords, I was concerned about security. I did not know whether they were genuine or not. So I waited until I got home and did a bit of reading on the internet. I discovered that the messages were genuine and having to re-validate passwords on these accounts is normal.
I have struggled with assigning the ringtone of my choice to the number of my choice. The instruction booklet isn't really very helpful. In fact it is very sketchy. I would have liked a lot more information. The manufacturers assume we all know a lot about these things to start with. But some of us don't. So I have knocked a star off the rating to reflect the sketchiness of the instruction booklet.
When a voicemail has been left by someone, the voicemail rings you several times if you don't answer immediately. I would like to assign a ringtone to the voicemail - but have been unable to do it. I would also like to use music which is stored in my music folder on the blackberry rather than the ones which come with the phone, but, again I have struggled to do this. The instructions could be MUCH better.
The camera isn't too good but I have a digital camera so I don't expect the camera on my phone to be as good as that.
Other than that, it's a nice piece of kit.
Way too pricey though. But aren't they all?
EDIT 15th Nov 2010 -
I have worked out how to assign a ringtone to voice mail. I added the voicemail number [121 for vodafone] to my list of contacts and assigned it a ring tone of its own.
And thanks to one of the comments left on here, there are now instructions on how to amend the times on the reminder calendar to suit your own preference.
Also, my blackberry bold 9000 phone was under a two year plan, and after having it for about 13 months, the volume of the ringer went really quiet. I couldn't hear calls or texts even when on 'loud.'
I contacted vodafone and they said this was a known issue with this model and they sent a new one by courier and took the old phone back. No questions asked.
The new phone looked the same but things were different on it! And no one told me. Grrrr.
For instance, I used to lock the screen by pressing in the button on the left hand side. Now when I press that button I get a voice dialling facility speaking to me and bleeping! Aaaaargh. I hate it.
I discovered a wonderful source of info called "Crackberry" Forums and found out that now in order to lock the screen, I must press and hold down for three seconds the '*' button.
These forums seem to have pretty much any solution to any Blackberry related problem.