Seems a bit much for London. I have a TomTom but the map & traffic subscriptions equate to over £100 per year. And I can't even update the maps using Linux, so

Seems a bit much for London. I have a TomTom but the map & traffic subscriptions equate to over £100 per year. And I can't even update the maps using Linux, so I basically let it expire and have abandoned it. I do occasionally use Google Navigation on my Android for sat nav purposes, but for driving around a city that I know really well it is redundant except for traffic info (but even then I can usually work out my own route with better local knowledge of where traffic goes). So yes, I could've fumbled around and got my phone from my bag (behind the seat), and wired it up, and viewed the traffic. But I was driving, even when I was mostly stationary I wouldn't take my attention away from the road like that. Hence, if I had Glass, then I wouldn't need to prep in advance, nor fumble around... the tools would just be with me for when I needed to activate them. Yesterday seemed exceptional though, something fouled up the whole of Fulham and Chelsea and the domino effect knocked out all major routes around too. That's an exception, not the rule... even if my TomTom subscription was active and up to date I wouldn't have wired it up just for a cross-town drive.