When I first got our labs two SGI Indy's webcams pointed at each others relevant coffeepots over ISDN, with 30km's space between them, there was definite magic.
The same when I sat in the hills of Griffith Park with a Ricochet modem and a tiBook, wondering how much ssh'ing and CUSeeMe I'd be able to do until the batteries ran out.
Once these kinds of activities became integrated into a laptop, the magic of all of the pasts' future predictions definitely became atmospheric.