This is the best summary I could come up with:

Brussels’ battle with the two US companies over Apple’s iMessage chat app and Microsoft’s Bing search engine comes ahead of Wednesday’s publication of the first list of services to be regulated by the Digital Markets Act.

The legislation imposes new responsibilities on tech companies, including sharing data, linking to competitors, and making their services interoperable with rival apps.

Microsoft had rejected the idea that Bing should be subject to the same obligations placed on its much larger rival, Google Search, said two people with direct knowledge of the matter.

Separately, Apple argued that iMessage did not meet the threshold of user numbers at which the rules applied and therefore should not comply with obligations that include opening the service to rival apps such as Meta’s WhatsApp, said the two people.

Meta’s Instagram and Facebook and Google’s search engine are all expected to be covered by the new rules, which are aimed at opening up markets and enabling competition from European start-ups.

“The DMA will bring new competition to digital markets in Europe, and now it is up to the commission to make it work,” said Andreas Schwab, the MEP who led negotiation of the rules.

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