Good day friends!
I’m talking about cell phones a little bit ... I just had a lot of clamshells, but when the density of calls increased, it became inconvenient to use them - open-close ... And I again returned to simple handsets. But they also found 2 drawbacks:
1. While dialing a number, the phone is held with the index, middle and thumb fingers, while the latter also participates directly in dialing the number. In addition, the center of mass of the phone is actually located beyond the limit of the hand (unlike the clamshell). Therefore, with the active use of the muscles of the thumb oh-very tired. Fact:

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2. Have you noticed that after a conversation, the owners of such tubes after a conversation wipe the display? The reason is that the display of the phone touches the cheek and microparticle of the skin and grease stains the display. This is fact number 2:

I wondered what could be done with this. And I just turned the phone over ... The phone is conveniently in your hand. Mass balanced. Thumb ergonomically dials the number and does not hold the phone - his muscles got freedom ... And does not obscure the screen. See rice:

And the display no longer touches the cheek. The problem of its purity is solved:

PS in the pictures is not me, but my wife. :)
It remains only to turn the labels on the display and buttons. It is a pity that the manufacturers did not do this ... Probably, they did not look at the problem from my point of view. Or for them it is not a problem.
Although I absolutely do not care why. I know that Sony a year ago introduced a new concept phone with a case based on e-ink technology. Therefore, it will be possible to independently set the location of the buttons and the display on the screen. A kind of phone 2.0, when it is not the manufacturer that determines and assigns the functions, but the consumer.
In general, at first I published it in my blog just as an illustration to
solving marketing problems . But when the lively discussion went, I thought that HabraTeam is all the more interesting! It is so? :)