I can't stand Jakob Nielsen. I'll have to go into why some other day. But he did write a good article on his site covering a study about why listening to people talk on their cellphones is so annoying, mistitled "Why Cell Phones are Annoying". Not to sound too much like the NRA, but cellphones aren't annoying, it's the people that use them.

 Most of the results are pretty obvious, including "people pay more attention when they hear only half a conversation" and "It's apparently easier to tune out the continuous drone of a complete conversation." But, in typical Nielsen Listen To Me fashion, he says "If mobile-phone vendors want to avoid a backlash against their products, they're well advised to heed these findings and launch a major effort to make mobile phones less irritating to bystanders." By what? Selling them to mute chimps? By rolling out that brain-wave reader feature? People talk on cellphones, doofus.