Keep in mind that having access to knowledge doesn't make you intelligent - it's putting that knowledge to use that matters. If you hear an unfamiliar word at a dinner party and tell a computer chip in your glasses to look it up, that's just awesome. I personally can't wait for such technology to come about, and I don't see the danger of such progress - where do you?
You might be interested in Dan Simmons' Hyperion books. They're my absolute favorite of the sci-fi genre and the world is rich with the sort of gadgets you mention.
I see what you mean, but what
I mean is that rather than having a human conversation, it's two people spouting off paragraphs or re-wording facts and figures compiled by other people. It's borrowed 'knowledge'.
Now, I know most people think of intelligence as people's cognitive ability, or the ability to manipulate information and make sense out of it, and that's essentially right, but ultimately that's all intelligence would be if technology like this got around - there would no longer
be varying degrees of intelligence among the common people: it would be a simple division between those who understand the simple user-friendly language of wikipaedia and those who do not (and then, of course, the absolute experts and geniuses who would run wikipaedia and provide the knowledge).
Because - considering that wikipaedia got better and better over time - there wouldn't be much need for schools or training, at least on the basic level, for nearly every skill or profession would have context-sensitive on-the-fly in-depth instructions which could be accessed in minutes. (No longer do you memorise complex procedures from textbooks - simply say "Wikipaedia, show me brain surgery. Frontal Lobe Tumor Removal. How about... the latest techniques from the Indian Neuroscience Association. Thanks Wiki!" - because what's the difference between taking a course in real-life, and doing an audio-video interactive ultra-realistic simulation where not only does the best Neurology expert in the world guide you through the procedure personally, but you actually get to perform it in real-time on a virtual brain as many times as you want for practice.)
...
I forgot what my argument against this was

Anyway, the important thing is - I find it very annoying when people obviously just skim through a Wiki article on a topic and then post as if they were born knowing about it...
I'm sure we've all done it at one time or another, but it just seems... wrong.
Oh yeah, and I've heard of Hyperion. I've been meaning to read a nice sci-fi novel... lately it's been mostly crime and thrillers... In fact, I don't think I've ever read a decent sci-fi... I'll keep a look-out.