Apparently a professor (and ham radio enthusiast) from the University of Rhode Island has invented a new kind of radio antenna that performs as well as antennae three to nine times larger.  The article mentions walkie-talkies as a possible application – I wonder if this could be used to shrink those big cell phone towers that seem to be sprouting on every hill?

[update: Bernie tells me my original link causes malicious popups, so I've replaced it with a link to the original URI press release.]