Week in review: Drool over iPhone 5 pics made from design specs

Here’s our roundup of the week’s top tech business news. First, the most popular stories VentureBeat published in the last seven days:

New iPhone 5 images based on leaked design specs — A new set of iPhone 5 device mockups making the rounds could be giving consumers a glimpse of what’s to come on launch day.

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Hacking water meters is easier than it should be — The smarter water meters become, the easier they’re getting to hack.

Hacker group Anonymous threatens to destroy Facebook Nov. 5 — Notorious hacker collective Anonymous on Tuesday threatened to “kill” Facebook on Nov. 5.

Nokia exec: Android and iPhone focus on the app is “outdated” — The reliance by Apple and Android phones on the “app” as the central metaphor is “outdated,” said Nokia exec Chris Weber.

Photos show the cultural difference between Black Hat and Defcon hacker events — Thousands of security professionals, hackers, federal agents and media descended on Las Vegas this week to attend the Black Hat and Defcon conferences.

And here are five more posts we think are important, thought-provoking, fun, or all of the above:

Yelp has a new CFO. An IPO can’t be far off — Popular local search and reviews site Yelp is getting closer to a possible public stock offering.

Can Google+ circles stand the test of time? A look inside Google’s user experience — No one can doubt that Google+ circles are fun, easy to set up and innovative.

Nokia gives up on (weak) North America Symbian business, no N9 either — Really, that’s like saying Nokia has decided to stop stabbing itself in the eye.

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Zynga revises its IPO filing with the SEC — a signal that it still plans to go public — Zynga’s filing suggests that it is still considering an IPO despite the topsy-turvy nature of the stock market.

Intel to invest $300M in “Ultrabook” computers — Intel has created a $300 million fund to invest in “ultrabook” computers, which it considers to be the next revolution in personal computers.