However, as the millions of active mobile text message users in Asian and European countries have shown us, consumers are willing to input text even with primitive keypads.

ENGADGET: Switched On: Time to write off pen computing

So to get his attention, I switched to my word processor, typed a long message, copied it to my clipboard, copied my clipboard over to his clipboard, and pasted the message into his active window.

CNN: Opinion: Difficult to become a hacker? It's easier than you think

The Environment: Be even more active in recruiting experts who are sympathetic to your view, and much more active in making them part of your message.

BBC: Climate chaos: Transcript

The megaphone lets you send a message to your less-active friend telling them to go for a walk, run or bike ride -- but you can only bully them once ever seven days.

CNN: Fitness tools that tap the power of your friends

"While we absolutely encourage sexually active teens to be tested for STDs, the underlying message of the Qpid.me campaign is troublesome, " says Valerie Huber, president and CEO of the National Abstinence Education Association, a group that "exists to serve, support and represent individuals and organizations in the practice of abstinence education, " according to its website.

CNN: STD site partners with school district

This is remarkable because Twitter has been in the money-making game for only three years, primarily selling "sponsored tweets" to advertisers whose come-ons pop up in the message streams of the service's 200 million-plus active users.

WSJ: Is Twitter Really Worth $10 Billion?

According to the Yankee Group, more than half of all teens between the ages of 13 and 17 are active users of wireless text messaging, sending blurbs using the "SMS" short message service.

FORBES: Just Speechless

PALIN'S SPEECH was a message of national - rather than simply Republican - resolve against Iran's nuclear weapons program and its active involvement in global and regional terrorism.

CENTERFORSECURITYPOLICY: Your abortions or your lives!