You can manually force a sync from Home by using the menu item Sync & Check for Items. If I'm going to use my iPod touch, I first make sure Whispernet is turned on on my KDXG and use this menu. Then I turn off the KDXG. When I open the book in the Amazon app on the touch, it asks if I want to sync to farthest read, I say yes, and it works. Before I learned this trick, I was not always seeing the farthest page read.