Are touch peak risky to your strength?
Are touch screen cell phones dangerous to your facade and eyes since they are close?
Answer: Nah. Touch screen cell phones are no more or less insecure than any other cell phone. The danger comes from the magnetic corral generated by the high frequency (usually PCS - which is contained by the microwave range) carrier, and you get that by holding the phone close to your ear while discussion. But the relative size (not to mention the strength) of the field generated by the electronics needed for the touchscreen is minimal compared to the possessor frequency, so before you are talking on the phone (i.e. using the touch screen), within is no danger.
Ever hear about how policemen (and women) hold a higher risk of throat cancer? That's because their radios are connected to their uniforms effective their necks, and are thus susceptible to the high frequencies. So, to minimize the menace of the high frequency carrier while you are conversation, always use an earpiece - or your speakerphone.
*** EDIT ***
There is no valid difference between one cell phone and another, as far as the "danger" is concerned. And unless you are on your cell phone for most of the day, there is no existing danger anyway. I only mentioned roughly the police because they wear their radios on their shoulders for at least eight hours every day, so they ARE at a greater risk, but if it be a huge risk, then you'd hear about that every morning, and you don't. Just know that there is a risk, and, as with any risk, it's perceptive to take whatever precautions you can - such as by keeping some physical distance from your leader while using the phone.
Again, it is minimal, but the "danger" from the high frequency carrier breakers while the cell phone is in use is comparatively much greater than any threat posed by the touch screen itself..
Yes, they are terrifying. They emit radiation that shows in the form of color, or perceptible light. It can, long term, wreak cancer, but short term, there should be no actual problems. If you leave it near sensitive organs for long period of time, it could cause real trouble. No, not at adjectives. Just don't use them while driving and you will be OK.