It's probably not easy/cheap to win an infringement case in China.
This situation reminds me of the notice Apple sent to retailers not to sell the Samsung Galaxy Tab 10.1.
So Apple gives the developer a chance to respond (i.e. it will probably take a few days to see any action). If they didn't we would end up with the mess like they have with DMCA notice takedowns on YouTube.
I wrote about it in more detail at http://blog.th.ingsmadeoutofotherthin.gs/eucalyptus-availabl...