Kara Swisher of All Things Digital:

Unfortunately, the continued verbal jousts at Apple (AAPL) by many Google (GOOG) execs - including CEO Eric Schmidt - onstage at the San Francisco developers conference got tired pretty quickly and soon felt petty and juvenile, and ultimately made Google look needlessly defensive.

It is interesting watching world beating CEOs having playground spats.

The best possible retort that Apple could make now is to not mention Google or anything to do with them during WWDC. That would probably hurt more than some over the top, carefully thought through response, no matter how subtle it is.

Note to Mr Jobs: Rise above the playground, ignore them completely.