I understand that they have delayed the announcement of these iPads until the M4 is ready, otherwise there is nothing interesting to offer to those who have an iPad Pro M2. I don't see the convenience of having a MacBook M3 and an iPad M4. If I can't run Xcode on an iPad M4, the MacBook is the smartest option; it has a bigger screen, more memory, and if you complement it with an iPad Air, you don't miss out on anything.