The much predicted Apple I Phone was unveiled yesterday. It lives up to the hype! It solves some major problems that have been holding back mobile computing. Here are three reasons why the iphone is innovative:

Problem 1. HCI. Data entry

Phones have a user interface problem. If you want to type in stuff you need a keyboard but the phone is too small for a keyboard. Solutions have tended to revolve around:

1abc
querty
touch sensitive screen and stylus

(a composite image if text input methods)

None of these methods is completely satisfactory. Apple have come up with finger input on a touch sensitive screen. Every solution is a compromise between size and ease of use. The bigger screen on the I Phone gives finger input the edge. So now its easy to write in a URL. Being able to write in a URL is a major step forward for the mobile web – wobile.

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