On the other hand, if you are like me I don't want every single one of my devices linked together. For example, in general I don't want my work PC synced with my home PC because work stuff is mostly confidential and I don't want urls appearing outside of that machine. However, I do surf the web on it as well for general stuff and from time to time I do want it on my N7.
So if you do need to do that then install the chrome to mobile add on from google's web store. That will let you manually push a url to your N7 without them seeing each other's bookmarks/tabs.