At the end of last week I slipped on a wet floor, did a wild, balletic (or so I thought) attempt to recover, and wrenched my knee and leg. The next four days were a blur of X-rays and Vicodin. Luckily nothing broken, but I've had better weekends.

A Texas man who sold supposed backup copies of Adobe Systems, Microsoft and Autodesk software through multiple websites has been sentenced to serve nearly five years in prison and ordered to pay more than US$402,000 in restitution, the U.S. Department of Justice and U.S. Immigration and Customs Enforcement have announced.

Disappointing earnings reports this week from Hewlett-Packard and Dell were offset by more encouraging results from software makers, confirming forecasts for general trends in IT spending this year.

Repeating what has been a familiar pattern for the past six months, tech earnings and market forecasts this week show that while enterprise IT sales, especially for software, are booming, consumer demand for PCs is flagging.

Autodesk is bringing its AutoCAD architecture, design, and engineering software back to the Mac OS after an 18-year absence, the company announced this evening. But the company plans to do more than offer a Mac OS X version of AutoCAD: It says it will release a free version of the software, dubbed AutoCAD WS, for the iPad, iPhone, and iPod Touch that lets users review, edit, and share AutoCAD files on those popular mobile devices.

Autodesk announced that it is bringing AutoCAD back to the Mac, and also adding AutoCAD apps for the iPhone, iPod Touch, and iPad.