> Yes, IMO when you hit some amount of market saturation your patents should be invalidated and your work made open.
I actually agree with this much more than I agree with the notion that if a company is able to vertically integrate a hardware and software stack, they are no longer allowed to differentiate by using software. I'd be way more in favor of a Qualcomm fair licensing settlement (and, if you look at countries in Asia with successful mobile chipset competition, sure enough, they all already did this...), and I think it would be significantly more meaningful, as well, given Apple's market share in the EU versus Qualcomm's patent-share on 4G/5G.
> BTLE multidevice hand off
What is this? I'm genuinely curious. I know that Bluetooth supports multipoint, but as far as I know there is no standard for a phone to send a BLE notification or advertisement that says "yo, swap streams, I got a phone call" in the way Apple do.
> Proximity Pairing (BTLE, again)
This isn't a standard, but rather a more-open Google thing (GFPS).
> Miracast/Google Cast
These are both almost as closed as AirPlay. The receiver side works basically the same way, you give the standards owner money and they give you a big binary blob and a device certificate.
> NFC emulation (Windows Mobile 10 had support before Android/iOS)
I remember using this, it was really cool and a surprisingly complete implementation. Windows Phone was so far ahead of its time in so many ways...
> background execution (this isn't even special, it's just something only Apple gets but others don't)
For this exact reason, I feel like this is one of the more difficult ones for Apple to give other people access to in a good way, honestly. Right now their in-house apps basically get to run in the background and operate on some combination of the honor system and internal QA to make sure they stay within power/timeslice budget (or don't, given Apple's recent quality woes). Now they have to come up with a way to regulate third-party timeslice and API consumption that doesn't also upset the regulators.