I feel the same way. With my smartphone in my pocket, I ended up whipping it out at every second of downtime to read... anything. Twitter, HN, news.

That's not an indictment of smartphones but of myself. My wife does just fine with a smartphone, taking it out only to check her calendar.

My solution: dumbphone in my pocket, Nexus 7 tablet in my bag. If I leave home without a bag, I won't need more than a phone. Otherwise, I have access to maps, mail, etc. but need to make a conscious decision to take it out - and look ridiculous when I walk around with it, which helps with the addictive part as well.