Yep, I was thinking. How about amps with built-in WiFi? Amps with a flashing blue l.e.d. wireless icon on the front panel. Plug a WiFi dongle thingy into your guitar's cable jack, and connect your guitar to your amp digitally, over, say, a club's LAN or over the internet via a broadband hookup, instead of a Nady-type analog wireless rig. I don't know if such a thing will ever see the light of day, but it's just a fun thought I had. One cool thing about all this would be, if a band won't let me sit in, and the band's guitarist has a WiFi amp, I could hack into his or her amp from home and play through their rig, suddenly in the middle of a set.