Earlier quoted context omitted.
Yeah, that's probably a fair point. It wasn't clear until I looked at the architecture diagram, though. Native Sailfish apps are Qt based; with android apps as a secondary thing, presumably to kick-start the platform while they try to build an ecosystem. (Which makes sense, developers won't come unless people are using it but people won't use it if there are no apps.) I'm guessing that was Blackberry's strategy too.…
I have different question. Technically no vendor can offer something exceptionally different from hardware point of view. Bazillion megapixels, bazillion megaherz, bazillion cores and etc. - nobody cares about that. It takes decent pictures - good enough. It is not camera with lens replacement anyway. It works reasonably fast - good enough, I take it. Replaceable parts(1) - meh I don't care unless I can attach lens b…
You could almost always upgrade to Microsoft without losing your old data and programs. CP/M programs could be ran virtually unmodified on DOS. Lotus documents could be opened in Office. But if anything used special Microsoft-only features them the customer would need to keep using Microsoft products.
Assuming customers will only upgrade to a new system that can run their old programs, and open their old documents, then eventually they'd all end up stuck with Microsoft.
Obviously, not every customer is like that, and iOS customers won't have a reason to switch, but it's not a terrible strategy.
Offering Android means that users can upgrade from an Android phone. Offering Qt means that users will get trapped (at least, until there's enough users that Android makers start trying to fight back, but that's a good problem to have).