Does anyone else remember when Apple (Nasdaq: AAPL) and Motorola were partners? Those days are over, Fool.

The company that helped usher in the PowerPC chip, and that once sold Mac clones, is now the enemy thanks to an ad promoting Motorola Mobility's (NYSE: MMI) forthcoming Xoom tablet, aired during Sunday's Super Bowl:

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Fool contributor Tim Beyers is a member of the Rule Breakers stock-picking team. He owned shares of Apple and Google at the time of publication. Check out Tim's portfolio holdings and Foolish writings, or connect with him on Twitter as @milehighfool. You can also get his insights delivered directly to your RSS reader. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool owns shares of Best Buy, Google, Microsoft, and Apple, in which it has also written puts. The Fool is also on Twitter as @TheMotleyFool. Its disclosure policy sometimes counts sheep to get a good night's rest.