Is “reach out and touch” an idiom?

I'm not sure that it qualifies as an "idiom", but "reach out and touch someone" is a well-known poetic phrase meaning to make emotional contact with another human being. Using it to describe a weapon is intended to be ironic.

reach out and touch someone

was used as a very common idiom in the 1980s by Bell systems. Bell systems coined the phrase in their commercial, which caught a hold of society. Bill and Ted traveled through time in a glass phone booth, which the use of the phrase fit perfectly for the scenario. =D

EDIT: To further establish that the above is still considered an 'idiom' and not solely an 'ad tagline', a simple 'define idiom' search in google provides:

A group of words established by usage as having a meaning not deducible from those of the individual words (e.g., raining cats)

In which "reach out and touch [...]" does just that.

I'm gonna disagree with both answers (and agree with Marthaª) and say that it's just warm, fuzzy advertising lingo from the days when one had to pay an arm and a leg to call long distance using a landline telephone instead of Skype. It's calculated to press your money-belt buttons to turn the money-belt into a jackpot ejaculating Las Vegas slot machine transferring your wealth into the bank account of Ma Bell or whatever other phone service provider you had to deal with. Rather than an idiom, I'd call it an advertising cliché.