Design Looking Backwards

Why do phones make the noise of a camera shutter every time a picture is taken, the save icon remain a floppy disk, your email have an envelope and your iCalendar look like its made from a cow?

On the one hand, being the creatures of habit that we are, we find comfort in the familiar. But does that come at a cost and limit functionality, as well as cheapen our experiences?

In products the real material generally costs more and (arguably) is perceived as better. (Think solid aluminium Macbook Air vs Ultrabook) but in the digital we're already aware that the form is generally 2D and not physical.

In a sense skeuomorphism makes the digital more approachable and understandable, the argument remains as to whether we now need our digital technology to imitate that which exists, or on the other hand do we expect our technology to surpass the physical?

Handwritings great, but I guess most people bought a phone to type, and reading "marker felt" on a 4" screen in pt. 7 size font is painful at best. Bring on Helvetica. Or better yet Newvetica.