answer:Can depend on what servers are available. if your company has a blackberry server, then a blackberry would be great. it’s not totally necessary, but it’s easier if you have it. if your company has Exchange email and allows you to get your email via “ActiveSync”, then an iPhone or phone with Windows Mobile would be great, too. Now, if your company doesn’t use Exchange and/or doesn’t have a blackberry server, then all of this doesn’t really matter. you can still get your email using IMAP/POP3 with either device.. You can view office documents on either device…although with the blackberry and DocumentsToGo Standard (comes with blackberry), you can edit PowerPoint files where you cannot with the iPhone…iPhone can only handle Word, Excel, and PDF files… as far as a business device goes…it all depends on what you can and/or want to do with it. if you want to do music and videos, then the iPhone is the way to go. If you need a more simple device to look at files and check email, then the Blackberry might be the way to go (or a Windows Mobile Device). If you don’t mind a touch screen for everything that you do, then iPhone is great. if you hate the thought, like me, of being stuck with a touch screen, then don’t get an iPhone. I had a windows mobile device for work that had touch screen with a slide out keyboard. I hated the fact that I had to dial numbers with a stupid touch screen. This makes driving and dialing difficult. and I guess I just like navigating with hard buttons a lot better…but to each his own. I now have a Motorola Q that has Windows Mobile but doesn’t use a touch screen. the buttons are kindof small, but the screen is a decent size, I can use it as a modem for my laptop, view office files, and I can watch videos and listen to music if I so desire. lastly, if you need a lot of space for files and music and videos, then the iphone has a lot more space. blackberry’s and windows mobile devices don’t usually have a lot of extra space, but you can add storage with mini SD cards. sorry for the long answer