Another reason why I think we'll see 3D Macs at some point in the not-too-distant future (say, within four years, tops): the DisplaySearch research group (http://www.displaysearch.com) forecasts 3.4 million 3D TVs to be shipped in 2010, with the market expected to reach 42.9 million in 2014.

Based on this forecast, 3D TV market penetration is expected to grow from a 5% share of total flat panel TVs in 2010 to 37% in 2014. Despite the forecasted growth for 3D TVs, the consumer electronics industry is running ahead of content availability, as 3D content for TV remains limited to a small number of movies, plus some sports events on pay TV, which are dependent on cable providers.

Blockbuster movies in 3D, such as "Avatar," won't be available for 3D TV in 2010. In addition, the low penetration of Blu-ray players, and especially HD broadcasts, outside of North America and Japan affects content availability. Consumers may be tempted to wait for the ecosystem to develop in order to have enough material to watch.

This, coupled with other significant obstacles for 3D implementation in the home, like consumer perceptions of 3D glasses, remain unresolved. DisplaySearch also notes that other technologies, such as LED backlighting, are important.