With the advent of multi-core architectures, these devices are starting to have 2, 4, 8… computers each in them, so we’ll exceed a dozen computers “on and around their bodies” very soon. One could argue that it is “typical” already, but it will become very common within a couple of years.

There's clearly a disconnect between his 'computer' and the general meaning of 'computer'; A multicore processor isn't more than one computer, and it wasn't in 1990.

Also, he seems to regard things as 'typical' that I would call 'common'; I say 'common' when it isn't surprising to see something, and 'typical' when it is surprising to note it's absence, while he seems to use 'typical' for things which are not surprising, and 'common' for things which are commercially available (regardless of cost or prevalence)