Major rivals Apple and Microsoft are both involved in new legal disputes, although for entirely separate reasons. Apple is being sued over its screen rendering technology used in the iPhone and iPod Touch, while Microsoft faces accusations that it is using the unpopularity of the Vista operating system to make a profit from people who want to "downgrade" to the Windows XP operating system.
The Apple lawsuit has been filed in the U.S District for Delaware court and is being instigated by mobile phone software provider Picsel Technologies. The company claims Apple has infringed its "rapid redraw" patent, which allows mobile phone users to navigate through on-screen content without experiencing prolonged screen update cycles.
Law firm Nixon Peabody LLP, which is representing Picsel in the case, said in a statement, "Without Piscel's technology, users can be subjected to prolonged delays while zooming and panning documents, web pages, and images. This core rendering feature is a key contributor to the unique visual experience delivered by Picsel."
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