I think I'd take issue with your analysis of BB versus iPhone.
But I have the advantage of reviewing tons of BB applications and a lot of them are drop-dead cool.
My short description:
A BlackBerry (especially the Bold) is a for-real handheld computing platform that can do more kinds of keeping you in touch & a bunch of other things, from better-than-in-dash navigation to tuning your guitar, from watching movies to recording them, from putting MS Office in your hand to controlling your own office from your hand, from listening in stereo to browsing the Web to opening your garage door to being a remote control for everything in your house to giving you more than a thousand channels of music, comedy, news & more.
An iPhone is a cross between an iPod, a cell phone & a handheld game machine with a lot of applications, few of which make you more productive or let you get real work done when away from your computer.