Palm Inc has fired another volley at Apple Inc in their smartphone war, as

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the two rivals tussle over whether iTunes should be

compatible with Palm’s new Pre smartphone.

Palm, whose executive ranks include former Apple brass, released a software update for the Pre this week that allows it to sync again with Apple’s iTunes media management software. The move comes after Apple last week issued its own software update to close a loophole in iTunes that had allowed it to sync with the Pre. iTunes is designed to work with Apple’s iPod and iPhone products.

Palm announced the software update in a blog post that mimicked Steve Jobs’ signature catchphrase “Oh, and one more thing,” which the Apple chief executive has often used to announce a brand new product.