(i)phone ?

""i" is not a generic prefix used to describe a type of service or product; rather, it is used in the branding of individual products. Where as e-mail refers to electronic mail in general, iMail, if it existed, would probably refer to an individual e-mail service. The i prefix is especially connected to Apple Inc., who first popularized it with the iMac and iBook[8] and now keeps a long line of products starting with i, including iPod, iTunes, iPhone, iLife and others. Apple initially said the "i" stood for "internet";[9] however, subsequent uses of the internet prefix do not appear to make inherent sense, for example the program iPhoto.

Despite its close association with Apple, the i prefix has been used by other companies as well, such as Google (iGoogle[10]). It has also been used extensively by shareware and freeware developers in the branding of their products, probably on purpose to be associated with Apple's i-products."