Right. They could have simply launched a new app that centralized the review data that they'd already gathered from 4sq and continued to populate this new app w/ the valuable data from 4sq, and then used the two apps to feed each other. That would have been cool and not irritated their most loyal users. Also, Brand extension almost never works: http://amzn.to/1D2J4c8

I might have even installed it. ;)