Since last week, for most apps, the ranking on iPod and iPhone are not totally same any more. Even on a same keyword, the ranking differs. For example, Keyword: card shark iPhone: #41 iPod: #64 However, some list apps, iPod and iPhone rankings stay the same. For example, Keyword: Omaha Poker iPhone: #1 iPod: #1 Did Apple separate the ranking on iPod and iPhone? Or will Apple separate the rankings the same way it does to the ranking on iPad and iPhone? Just wondering if Apple is trying to set new factors for its algorithm?