Hey everyone, it’s Mark. Apple is working on a vapor chamber to improve cooling and performance in an iPad Pro slated for as early as 2027. Also: The company makes headway on a plan to bring ads to Apple Maps, and a foldable iPad with an 18-inch screen hits development snags. 

Last week in Power On: Apple’s M5 product line offers its most niche upgrades in years.

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The Starters

A customer holds an Apple iPad Pro. Photographer: Michael Nagle/Bloomberg

One of the best new features in Apple Inc.’s iPhone 17 Pro and Pro Max is the vapor chamber, a liquid-cooling system that helps tame the heat generated by the smartphones’ powerful chips.

Apple didn’t invent the concept — it’s been in devices from Samsung Electronics Co. and others for years — but the company turned it into a high-profile selling point and reason to upgrade. If you’ve used an iPhone 15 Pro or 16 Pro, you know that the titanium frame often made those models uncomfortably hot to hold.

The new iPhone is a different story...

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