If there's going to be multiple Nexus devices...

Perhaps Google could take a lighter approach to OEM customization. More like Windows Phone 7, little tweaks but nothing substantial that could drag updates. For example, the camera app in Jelly Bean is utter crap compared to what Samsung and HTC offer, specially the latter (which both looks beautiful and works well).

So what do you think? If such a line ever comes to fruition, should Google allow manufacturers to make certain (predefined) small tweaks to the Nexus line?. If you think they should, what other bits aside of the camera you think could benefit from a little variation?