> That doesn't mean that Google can fraudulently market an open platform and then close it after driving competing platforms out of the market without running afoul of antitrust law.
But they haven't done these things. If they violate the law, they will have violated the law. Google hasn't imposed the discussed requirements yet. However, even if they imposed them today, I do not believe they currently advertise that they allow side-loading.
Also the commercial market for sideloading is basically nil. I'm not sure what antitrust angle you'd take here -- whose market would they unfairly disadvantaging? Basically all antitrust actions thus far regarding mobile platforms have been regarding their gigantic commercial app stores. That is entirely unaffected by these changes.
> However, if Google wants to create a new platform that is a walled garden, as long as they are honest with users about what they are selling, that would be perfectly legal everywhere except the EU.
The policy they are proposing is the same policy that Apple recently switched to in order to comply with EU regulations! Apple is doing it precisely because it complies with the EU's demands.