It hasn't worked for me for either SP2 RC1 or RC2 (or earlier versions of FireFox). I think it has something to do with FireFox's XUL underpinnings... are FireFox's textboxes really implemented as the controls we expect?

It's particularly annoying when you can't pull up the TIP in undocked mode anymore... arrgh. Did they really need to remove that feature?

Yes, if the textboxes aren't implementing as proper Accessible textboxes the TIP won't appear. I think this... http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dntablet/html/carettrack.asp is the proper documentation for it.... As to why can't you pull up the TIP in undocked mode.... during my brief experience with RC1 I could do that... hmmm.. guess I better go check it out again.

Yeah, sounds like the blame for the egregious behavior rests with the Mozilla developers - not the MS team, as your post seems to suggest. I'd recommend filling in a bug report for Mozilla.

We've already got a bug filed with Bugzilla about it: http://bugzilla.mozilla.org/show_bug.cgi?id=244119

In my experience, the TIP doesn't show at all with SP2 RC1, Firefox 0.8. With Firefox 0.9, it shows up once in a browsing session at the very beginning and then disappears altogether for the remainder of the session. I haven't installed RC2 so I can't speak to that.

It's very annoying indeed, and I find myself hanging out in IE a lot more than I'd like as a result.