When is the samsung galaxy s3 getting upgraded to 4.2? i want some of the new features like lock screen google now widget and swype keyboard without needing to go third party. And please no "it is up to the manufacturer". Anyone have some inside info as to when this will happen?
Well honestly it is up to the manufacturer... if Samsung feels it is worthy of an update, they will do it. However, Telus/Koodo have to test the update on their network, add some of their own stuff, and then finally decide on when it's released. In the end, it goes through 2 channels and testing, which is why updates take longer or sometimes don't even come at all if you compare them to international models (see below).
Nexus phones are Google's babies and get updated straight from Google, so they're much faster.
International models of phones also get updated faster (sometimes exclusively) since they're usually unlocked and don't have carrier bloatware on it - Optimus Black and Optimus 2X are both capable of running ICS but the Telus/Koodo version of the Optimus Black and the Fido version of the 2X are both eternally stuck at Gingerbread. Note II is another example of this (ask Kid Android :P)
Your other option is what's called "rooting" the phone, which not only enables you to change crazy things like the PPI and processor speed but you can also get custom OSes - bye bye waiting for updates. Basically rooting makes the phone your slave, but it's a more advanced feature of Android phones that is a bit tricky to do.