Apple Inc. (NASDAQ:AAPL) has had a hell of a day, and it seems that CEO Tim Cook has been one of the most active members of the company’s entire staff. The head of the company was seen greeting fans outside of a Palo Alto Apple Inc. (NASDAQ:AAPL) store earlier today, and now he’s joined Twitter.

Apple Tim Cook

The Apple Inc. (NASDAQ:AAPL) iPhone 5s and iPhone 5c were just released this morning around the world, and the premium model, the iPhone 5s, appears to be almost completely sold out already. Analysts were expecting the company to sell 5-6 million phones this weekend. Few analysts predicted that Tim Cook would show up on Twitter.

 

Tim Cook on Twitter

Apple Inc. (NASDAQ:AAPL) CEO Tim Cook has stayed away from Twitter for years, but it seems his marketing team has finally convinced him to join the social network. Cook Tweeted about his visit to the Palo Alto store this afternoon, though it took a little while for anyone to believe it was actually him.

At time of writing, the executive had already collected close to 20,000 followers, which isn’t bad for just one tweet. Cook said that his visit to the retail store “reminds us of why we do what we do.”

Apple iPhone marketing extravaganza

Today’s news cycle couldn’t have fallen together better for Apple Inc. (NASDAQ:AAPL). Coverage of the company’s new smartphone release dominated the airwaves all day, and pictures of Apple stores overflowing with people could be seen almost everywhere. Tim Cook’s arrival on Twitter is the latest in a marketing spree that is likely to continue all weekend.

When Apple Inc. (NASDAQ:AAPL) gets free publicity, it knows how to leverage it. That may be the firm’s second best marketing tool, behind the acquisition of free publicity in the first place. Tim Cook is keeping the train rolling this afternoon, and his Twitter feed will likely become one of the most followed on earth this weekend. The question on the lips of shareholders is: “Will the executive will follow Carl Icahn?”