No it's not. You can download the app "android system info" to check or "GN official update checker" by Christian Bruggemann. Yakju is meant for GNex "issued" by Google (mostly us & uk sets). But that doesn't mean you can't change yours to yakju build. Look it up in xda.
Thanks for the info. I haven't bought the phone yet, but I know what is yakju build. Just want to know what build local sets are getting.
So what is the build version for local sets? yakjuxw? Same from all 3 telcos?

