In the most recent example, Apple is taking Woolworths to court over a new logo which they claim is too similar to Apple's logo and might result in customer confusion. Woolworths, not to be confused with the US based retail chain Woolworth, is the largest retail company in Australia and New Zealand, and they recently came out with a new 'W' logo which to a certain extent does resemble Apple's.
Apple may take Woolworths to court over similar logo | NetworkWorld.com Community