Andy Rubin claims that there are two reasons the Nexus 4 does not have LTE: cost and battery life.
If the radio costs more, the solution is to charge more for the device, not to not include it. While people like a cheap device, they also like a device that runs on LTE. I find it a little hard to believe that the cost of an LTE radio would have really raise the price so high that they couldn’t sell it at a compelling price point. The problem is the carriers, not the radios.
The battery life claim is even more ridiculous. First of all, there are chips that have all of the radios in one, so you don’t need two chips. Second of all, the Nexus 4 has a substantially larger battery than the iPhone 4S which has LTE and HSPA+. If an Android phone with a 2100 mAh has battery issues with an LTE and HSPA radio, it isn’t the radio’s fault, it’s the software.
In short, Rubin is full of it. Google should either get better carrier deals in place to deal with updates on their products or admit that the carriers are the reason there is no LTE support on Google’s flagship devices. That, or petition the FCC to enforce open standards for LTE usage in the US so that Google doesn’t need carrier approval to put their devices on LTE networks.