Paid P2P wifi hotspots.

A raspberry Pi + a tiny WiFi router could be plugged in absolutely everywhere by entrepreneurs who have a few sats to spend on this cheap box. Imagine putting one in a starbucks.

Anyone with a phone, tablet, or laptop that wants some cheap, anonymous internets can simply log into it with LNAuth and pay for internet at a sats per minute rate. Today's WiFi spec (802.11ax) is highly efficient and operates on all 3 wifi channels. Great range & bandwidth.

Think of Jack Maller's streaming subscriptions video. That tech would bring a magical feel to this app.