Apple Inc. (NASDAQ: AAPL) is embroiled in a legal battle with the Department of Justice and the outcome could have significant implications for iPhone users. What Happened: The dispute centers around Apple’s control over its App Store, with the DOJ alleging anti-competitive practices. Insider reports that if Apple were to lose the case, iPhone users could see improvements in their devices. One significant change could involve the ability to download apps from third-party stores, which would provide users with more options and potentially foster competition in the app marketplace. The DOJ’s cas…