They get updates, it's just not as even as everyone else. I'll give an example.. when say, Apple comes out with new IOS or MS comes out with an update to Windows Phone, or even Blackberry to their OS, it gets pushed uniform. You're pretty much going to have it in a few weeks and everyone is about the same as long as same level device. (ie, don't expect Gen1 iPhone running 6.x.x etc.) With Android, though, updates are out there, but carriers and devices may not update on the same timeframe. Therefore, you may.. or may not.. receive updates easily. This is a bit of an issue with fragmentation. Some devices are better about this than others, but it isn't as uniform as their competitors. But yes, there are upgrades and they do happen in the field.