[simonh]

On iOS now we have all the same interchange mechanisms between applications we have on desktop. Decent file management, rich content cut-and-paste, side-by-side applications. Share sheets are great.

The main limitation is the interaction model, and that's just down the the mechanics of touch interfaces. Firstly fingers are imprecise big fat squishy blobs. Secondly the tablet form factor doesn't afford a large physical keyboard. These are the impediments and they're just facts of the form factor. the new multi-tasking interface in iPadOS looks like a great step forward, but it's always an issue.