The Project Navigator has this nifty filter at the bottom (icon with a clock). When you click it, it only shows the files which have been edited recently.
Problem: There seems to be no way to reset this. My project has nearly 200 source files and I use a lot of them from day to day. So this list is getting bigger and bigger, and therefore less useful over time.
Often I am just done with something and then I'd just want to get rid of these files in the recents filter.
Is there a secret way to reset the filter? Xcode4 must store this information somewhere.