- Safari open, iTunes open (or any app, it doesn't matter), Tweetie open
- bring iTunes to the front
- bring Tweetie to the front
- click a link in Tweetie
- Safari comes to the front but only the window Tweetie has just opened, not the whole app
- click the Tweetie menubar icon to hide Tweetie
- iTunes comes to the front (which covers the Safari window)

It looks like what's happening when you hide Tweetie by clicking the menubar icon is that the OS is bringing the previously frontmost app back to the front. This is not the desired behavior however. If I click a link in a tweet and then hide Tweetie, what I want to happen is for Tweetie to hide itself and to have my newly opened Safari window still frontmost.

I can't decide if I want all of Safari brought to the front or if I only want the new window(s) to remain in front (where I put them, so to speak), but I certainly don't want iTunes to jump back in front of what I was doing. It's oddly disconcerting, especially if I open several Safari windows by clicking links in Tweetie, to have them all suddenly "disappear" when I click the menubar icon.

It's like there's two different behaviors. Normally when I click the menubar icon Tweetie gets hidden and I get taken to my last used app. But in this specific case, it feels like my last used app is misidentified as not being Safari. As a user, it feels like clicking the menubar icon is hiding both Tweetie *and* Safari (even though that's not really what's happening).