Crackberry Kevin!
Good to see you again. Former Curve owner (sister now has it) and daily reader over at crackberry.com
I think you are going to enjoy using this phone. Maybe... just maybe, you will trade in your blackberrys and use this SUPERIOR device.
BadAsh gave you some great tips.
I will add a few.
1.As far as typing, I hold the phone almost fully in my right hand but rest it in the crease between my fingers and my palm. put your right pinky underneath the that way, my right thumb can get the whole screen if I want. basically if you have a thumb, you should be able to type almost solely with the right thumb (my fingers are really short). Now, I support the left side of the phone with my left hand and sometimes use the left thumb to take a few keys off the left side, maybe to the EDC line. Now the pics I used my left hand to take the picture, so I couldnt show you the left hand but its just there mostly for support.
I can type pretty fast, see if it works for you.
Also, if you have some sort of case/holder that you can keep the phone in and type, its easier. I bought a holster that I have to pull the phone out and type on it naked, and its a little slippier with no case. throw it in a leather case and I think you will love it.
also, if you really want landscape for email, go get easy-writer from the app store.
2. Some of my favorite apps are: Facebook, Folders (by Ractors), CoolIris is really cool, Fring, Ifish, TapDefense and of course SnowReports. I guess im not blown away by any apps, I expect my apps to be good. I suppose trying to find a good app with the Blackberry is a little harder... (looks to the sky.. nods and remembers)
3. You have to Jailbreak. If you were gonna own one, you know you would. So you gotta do it. I have a mac theme running, my own wallpaper, dim wallpaper, cycorder for the video recorder (which dieter said the iphone doesnt have) and all sorts of fun stuff. In fact, I have christmas lights flashing around the border of mine right now.... No WAY you can do some of this stuff on any Blackberry.
4. BadAsh will probably know where it is, but I even saw a program to edit word, excel and all of your favorite microsoft files. I forget where now.
Seriously, as a Mac user, you should love this phone. I know you arent brain-washed like Dieter. Come to the light, Kevin!!!
Shon