The European Union (EU) wants to make it easier for people to talk to each other using different messaging apps. They want to make sure that everyone can use the same service, even if their friends and family use a different one. WhatsApp is already working on this, but Apple's iMessage might also have to change its rules soon. The EU will decide in a few weeks whether iMessage has to follow the new rules or not. If it does, then people using iPhones could talk to people using Android phones more easily. This would be good for everyone because they wouldn't need to download another app just to chat with their friends. Read from source...

1. The article starts with a vague statement that WhatsApp is following Apple's iMessage in opening up to third-party chats amid EU push. This implies a causal relationship between the two events without providing any evidence or context.
2. The article cites 9to5Mac, which is not a reliable source of information for such topics. It would be better to use more credible sources like official statements from WhatsApp, Apple, or EU authorities.
3. The article uses the term "leading messaging platforms" without defining what criteria are used to determine their status. This could create confusion and mislead readers about the actual market position of these services.
4. The article mentions that the DMA is urging major messaging platforms to incorporate interoperability, but does not explain what this means or why it is important for users and competition.
5. The article reports that Apple has previously defended iMessage, stating that it is not as widely used in Europe and therefore should not be subject to antitrust investigation. This contradicts the fact that iMessage is a default app on all iPhone devices sold in Europe, and many users rely on it for communication.
6. The article states that Apple declared its plan to support the RCS standard on the iPhone in 2023, but does not specify when or how this will happen. This creates uncertainty and doubt about Apple's commitment to interoperability with other platforms.
7. The article mentions Elon Musk's plans to integrate Twitter into a unified text communication platform, but does not explain how this would affect the market dynamics or user experience of existing messaging services. It also seems irrelevant to the main topic of the article, which is about WhatsApp and iMessage.

Positive

Key points:
- Apple's iMessage might have to open up to third-party chats due to EU pressure
- WhatsApp is already working on this feature and could become a rival to iMessage in the U.S.
- Elon Musk also plans to integrate Twitter into a unified communication platform

Summary:
The article discusses how Apple's iMessage might face more competition from other messaging platforms, especially WhatsApp and Twitter, if it has to open up to third-party chats in the EU. The article cites WABetaInfo, which reports that WhatsApp is already preparing for this feature, while Elon Musk has revealed his vision to turn Twitter into an "everything app" that includes messaging and other functionalities. The article suggests that these developments could affect Apple's dominance in the U.S. messaging market.