Let's leverage the IP/internet protocol between two radios, using AX.25 as our transport. Ping, telnet, web, IRC-chat, anything you can do between two hosts on the internet (aside from encryption) can be done between two Amateur radios over RF. Ping times measured in seconds. Bandwidth measured in 100's of bytes. It's slow, sure and fun! Create reliable internet connections that span 100's of miles over RF. This is the essence of re-imagining amateur radio data modes in the information age.
TCP/IP over AX.25...memories from my youth. I used KA9Q NOS on DOS back then. Main thing I remember? It being REALLY slow!