Steve Jobs returns to Apple

Co-founder back at the helm in Cupertino.

Apple chief executive and co-founder Steve Jobs has officially returned to his position following a six-month medical leave.

The company said that Jobs will be splitting his time between working from his office at Apple headquarters and his home.

Jobs had been away from the company since taking a medical leave in January to address a health issue. Described as a 'hormone imbalance,' the condition was believed to be responsible for Jobs noticeable weight loss in 2007 and 2008.

The Apple co-founder's health has been a topic of discussion since Jobs revealed that he had undergone treatment for pancreatic cancer in 2003.

Before Jobs took his leave from the company in January, some began to speculate that the cancer had returned, a rumour which Jobs denied.

In the time since Jobs began his leave, the company has several major product updates and releases under the leadership of chief operating officer Tim Cook and vice president of marketing Philip Schiller who had taken Jobs' place as keynote speaker for the Macworld and WWDC conferences.

Over that stretch, the company released new notebook models along with a major update to the iPhone software coinciding with the release of the new iPhone 3GS handset model.

Speculation on Jobs return heated up in recent weeks when a quote from the Apple chief appeared on the company's news release of the one millionth iPhone 3GS unit sold.

Several reports also claimed Jobs had been spotted at Apple headquarters in recent weeks.

Though he has been absent from company headquarters, Steve Jobs has not been out of the news.

Earlier this month news surfaced that Jobs had undergone a liver transplant this spring. The transplant claim was later confirmed by a hospital in Tennessee.