I know, it's not a question, but Wi-Fi functionality has been put on hold for now. But not completely abandoned. There are several factors that were involved in making this decision:

•  Lack of Wi-Fi support for Pico' s file system.
• The fact that the Pico and its built-in Wi-Fi antenna are now housed within an aluminum case, which severely limits its range

I'll revisit this sometime in the future, but that functionality can wait for now.