As long as there is money to be made, there is always the possibility that greed will lead to ethical issues. This is true about agriculture, energy (oil), as well as computer related fields.
At this point (2006), the most debated topic is ``who owns a computer, who owns the content?'' Corporations are deriving strategies to increase their control over personal computers and even how contents are rendered on personal computers. It becomes easier for content authors to control the use of contents.