I saw the Bold in person yesterday and was quite impressed with the display. Its 2.8" in size, so I would hardly call it "too small" or "tiny". If you haven't seen the screen in person, you should, its really sharp and vibrant, a real "head turner".
The phone felt nice in my hands and the keyboard was really easy to use, I like it more than the Curve I had. The UI is improved and looks more modern and is really fast now (twice the processor speed on the Bold than on previous BB's, so it should be quick).
The speaker on the Bold is leaps and bounds better than the iPhones, its much louder and clear and the same time (one of my iPhone complaints, the speaker volume is too low and I can't use it well while I drive).
Blackberry's are very functional and even though they look confusing, it shouldn't take long to get used to them.
My Pro's and Con's list:
iPhone
Pros:
Large Touchscreen Display
Mulitouch
Full HTML browser (that's easy to use)
Easy integration with Mac's
iPod functionality (the best part in my opinion, other phones don't compare when it comes to multimedia stuff)
App Store
iTunes Store
Cons:
Worthless speaker
Missing certain common features like MMS
Locked down Bluetooth (no A2DP or bluetooth tethering/sharing)
Doesn't do things found on other smart phones, like document editing
Bold
Pros:
Physical Keyboard
Expandable memory
removable battery
Loud speaker
more email functionality than iPhone (like being able to save attachments)
nice PDA app suite included (password keeper, proper to do list, document editing, etc.)
Cons:
worthless web broswer
no app store (coming soon according to RIM)
no itunes/music store
hard to integrate with Mac's (again, RIM is claiming a solution is coming soon)
Forget about gaming, this is NOT the phone for it
Expensive (yes, its much more expensive than the iPhone)
If multimedia is not important, but emailing and typing a lot is, the Bold is a nice choice. This is the choice I am trying to make, whether or not I need a more multimedia based device or a more business oriented device (I think the iPhone will win, I don't want to spend $600 on a phone again, lol).