iLounge takes a look at some of the features of the iPhone. Some of the unexpected things is the support for Microsoft Word and Microsoft Excel documents, but the phone won't be able to edit these documents.
Internet and E-mail: Google search is the default for the integrated Safari browser, but Yahoo can be used instead. Accessing search is available by touching the URL. The built-in e-mail application can read not only JPEGs and PDF files, but also Word and Excel documents. Business users have frequently cited ambiguity over iPhone’s support for Word or Excel documents as a potentially fatal omission, so their inclusion removes just one more potential barrier to the phone’s popularity. Apple claims that in “about a week,” you’ll be thumb-typing faster on iPhone than any other small keyboard. Through a settings menu, mail can be checked manually, or automatically every 15, 30, or 60 minutes. You can also choose between 0 and 5 lines to show in the mail window preview, and change between five font sizes for easier reading.
Stocks: The stock application allows you to view historical stock performance for a company on a scale of 1 day to 2 years, with 1 week, 1 month, 3 month, 6 months, or 1 year options in-between. It also lets you know whether the markets are open or closed. You can add additional stocks to the list, and scroll through them if they don’t all fit on your screen with the performance graph in place.