Mh, yeah. You are right. It's flaky tho for me... Sometimes it displays my own messages, sometimes not. I won't open a bug for that right now. I just keep my fingers crossed we get the better implementation.
What is still missing now (even if or when it works), is a continous display for me. Currently you have to go email by email, which can be a bit cumbersome to navigate, because then you'll never get the "full picture" for a quick glance, if you get my drift.