Ex-wife calling you over and over again at midnight? Froyo can't really do anything about that, but it does keep repeat callers from taking up space in your call log. Android 2.2 introduces threaded calls -- if there's a repeat offender (controlling boyfriend, creditor, etc.), multiple calls are collapsed into a single pane. Tap it, and the calls expand so you can see just when each one was placed. Thanks to everyone who sent this in!