Here’s a roundup of today’s tech news:

Tim Cook, chief executive officer at Apple, has already made a few changes. (David Paul Morris/BLOOMBERG)

According to a report from the Wall Street Journal, Cook is taking the advice of business analysts and his late boss Steve Jobs by setting up his own path for the company. In addition to some administrative changes, Cook has also made some subtle revisions to the culture at Apple. As The Washington Post’s Peter Whoriskey reported, Apple introduced its first program to match employee contributions to nonprofit organizations up to $10,000 in September, something that Steve Jobs was reportedly opposed to doing. Jobs kept a low profile as a donor, and the Journal article says that he was “opposed to giving money away.”

Barnes and Noble launching a cheaper Nook?: Speculation is flying Tuesday that Barnes and Noble is getting ready to release a new, cheaper version of the Nook Color thanks to the company’s notice of a press event next Monday. The e-reader, which got official Android support in April, has been a popular alternative to more traditional tablets with its $250 price tag.

Black Friday deals drop early:Wal-Mart will be leaking its Black Friday deals early, following the lead of several major retailers in offering consumers an early peek at what it’s got on tap for the biggest shopping week of the year.

As of 2:30 p.m., Eastern, 10,000 people have “liked” a post on the retailer’s Facebook page that promises to release the company’s Black Friday ad to its Facebook fans first. Those who register at will also get an early look at the ad.

Google releases, pulls back Gmail app: Google on Wednesday released and then pulled back its Gmail app for the Apple store with a no-nonsense tweet on its Gmail Twitter account: “The iOS app we launched today contained a bug with notifications. We have pulled the app to fix the problem. Sorry we messed up.”

The app was up on the store for about an hour. It immediately prompted complaints from early adopters on Google+, Facebook and Twitter.

On Google+, apps lead Dave Girouard issued a more detailed explanation of what went wrong, saying that the app contained “a bug which broke notifications and caused users to see an error message when first opening the app.” He said that the company has pulled the app down while it fixes the problem, but that anyone who’s already installed the app can continue to use it.

Grand Theft Auto V: Rockstar Games released the trailer for its next “Grand Theft Auto” game, and it looks like players will be headed back to sunny California. As expected, the game is set in a version of Los Angeles, a callback to “Grand Theft Auto: San Andreas.”

Even with the teaser trailer, the company provided few details about the game itself— namely when it will be released. Rockstar has a history of announcing titles a year or more before they make it to store shelves, so don’t hold your breath.

Gmail redesign gets mixed reviews: Google rolled out its redesigned vision for Gmail Monday, and is getting mixed reactions as users adapt to the cleaner, airier interface. Some Gmail users on Twitter, Facebook and Google+ have praised the new look, which is reminiscent of its Google+ design, but others have said it’s too spaced out.

If you find yourself thinking the same thing, it’s fairly easy to adjust the spacing in the new layout by using the gear icon menu and choosing the display density. Your options are comfortable, cozy and compact, in order of most spaced-out to least.