I also really like the idea, but the reQall toolbar takes up a whole line in FF 3.5 Linux, and can't be moved by the normal method ("Customize..." toolbars and drag-n-drop). It would be best if it had a tool bar (or sidebar, or popup, I don't care) which was totally hidden, but popped up (and then away) with a single key combination. I need my screen real estate.
As a reQall user, I love the idea behind this extension. I am a very forgetful person, and I love making notes, so this couldn't be a more perfect tool for me. A tip for others: when using the reQall phone service, you have to say "note" at the beginning of your recording so it will be put in your notes category. I imagine that typing "Note" first in the text box will have the same effect. Only thing is that the extension takes up a lot of space, and I like to have a minimalist look. Not a big deal, though. Wonderful service, wonderful extension.
I'm just getting to grips with Reqall - on iphone and Windows. So far it looks promising but I agree with an earlier comment, it would be better if the Firefox toolbar did not take up so much room. I would prefer to have Reqall icons I could move to other toolbars.