Miniaturisation has come a long way. Back in the sixties, computers filled whole rooms. By the eighties, they could fit on your desktop. In the nineties we got used to carrying our PCs around and, in the last decade, the smartphone has made pocket productivity a daily reality for knowledge workers across the globe. Now, with Ubuntu for Eyewear, Canonical introduces a new class of personal productivity device, so unobtrusive that neither you nor your co-workers need even know it's there.