Do You Use Your iPhone for Work?

I assume that everyone reading this site has an iPhone (or wants to get one sometime soon), but how many of you use it for work? Now I’m not just talking about having your company e-mail on the phone, I mean realĀ work: writing out articles, mapping out buildings, teaching someone a new language, stuff like that. Is your iPhone more for work than it is for pleasure? Let us know in the box to the right.