Exchange of the Day:
"A little paranoid? This is the future. Get with the program or be left behind." - Guest
"That's what the lead lemming said." - Pathit
Someday we may leave the house with nothing but our phones, containing the countless items we used to fumble for: house key, credit card, driver's license, transit pass and corporate ID.
The phone-as-wallet trend started in South Korea and Japan about five years ago and became a reality in the U.S. in September, when the Google Wallet app went public. Many CNN.com readers were unenthusiastic, even those who like gadgets.
Cal78 said, "Great idea. My phone breaks and now I can't buy a new one. I can't even get into my house, but I guess that doesn't matter because I can't drive my car or take the bus to get there anyway. Let's put all of our eggs in one basket."
kaeksen asked, "Why can't we just have it as we have it now? Sometimes I hate progress. It's like we never get satisfied with our system; we continually have to change. It's annoying. Good to let out some steam." AthensGuy said, "Well, the 'empty pockets' are here already!"
wfrobinette said, "I don't see how the benefits of this out weigh the risks. We have become way to dependent on technology. This is nothing but a scam to get people to spend more money that they don't have and to reduce the number of service employees to process transactions. The faster we adopt automation that faster we all work ourselves out of a job."
But scrutineerza said, "This is inevitable. For example, I have Paypal on my iPhone, and can pay for online purchases with it. Also, in our country, some people send each other airtime (mobile call credit) instead of money, as a payment. It is much safer. Just think. If your wallet is stolen with a good few hundred dollars in it, you lose a lot. If your phone is stolen, and it has a PIN, and it's insured, you've really lost nothing. Welcome to the future. Moreover, cash is a bad idea. As long as there's cash, there will be cash robberies."
Pauls72 said, "Maybe for a few technogeeks, but for most of us, dream on. Way too many security issues. Smart phone battery life too short. How about the business with the signs 'In God we trust, all others pay cash!' Where's the software for my PalmPre or any other older smart phone?"
pmichner said, "Cool. Phones are more identical than wallets. I'll scope out a rich guy, get out the same model phone and skin, and 'bump' into him while he's talking on his wallet."
MediaFakery said, "No thanks, futurist think-tank weirdos. Cash works fine. You can all go off to some island somewhere to use your little smartphone credits with each other."
Simpelton said, " 'Uh sir, I'll have to cite you for no valid driver's license and no insurance.' 'But officer, my battery just died!' 'Sorry sir, ignorance is no excuse.'
Do your views align with these commenters' thoughts? Post a comment below or sound off on video.
Compiled by the CNN.com moderation staff. Some comments edited for length or clarity.