From Mactropolis.com:

Steve Jobs Takes Medical Leave Until End of June: Tim Cook Takes Over Operations: Looks like Steve Job’s health issues are a little more than he or anyone else expected. In a media release yesterday, he published this email to all Apple employees

Best of luck Steve. I don’t know what [Apple](http://www.apple.com) will do without you. The last time you left for any period of time, the company tanked. I hope you have things on better footing now.