I think he/she meant that it was listed for a lower price on Walmart.com than in-store at Walmart, and that Walmart couldn't pricematch to Walmart.com...
While you should be migrated to version 3 already, this book covers both versions 2 and 3 - when there are differences or new functionality in a later version I make a point of saying so and offer solutions to users still on version 2.
Yeah, I guess I just don't understand why I "should be migrated to version 3 already" when a non-dev build has yet to be released. Seems like a nice book otherwise.
for replacing the RAM on a unibody aluminum MacBook Pro? it's one screwdriver (Phillips 00), maybe 10 screws to remove from the edges of the back cover, and the RAM modules are easily accessible without any additional tools. One of the easiest RAM upgrades I've ever done... maybe 10 minutes max.
(not that it matters anymore since the retina models aren't user-upgradeable)
NextBus (or NextMuni, specifically) tracks buses and light rail by GPS... so what you're looking at isn't the actual bus schedule, but the estimated arrival time. Bus schedules are published on the Muni website and I doubt that mang of them are followed strictly.
The prize for Schekman and Rothman has been a long time coming - well deserved! For anyone unfamiliar, worth reading their groundbreaking Cell papers from the early 1980s.
(or look at any cell biology textbook!)