Just received a folding Bluetooth Freedom Pro keyboard as a gift. I've only used it a little bit, but so far liking it.
-folds to a nice compact size
-pairs as easily as my Microsoft Bluetooth 6000 keyboard
-keys are normal size
-nice click (not squishy), but not super clicky like the ones back in the early 90s
-not all function keys work (expected since you can't install drivers on the iPad) but the important ones to me do work: Play/Pause, Home button, Volume up/down, arrow keys.
I'm getting used to the split Space bar.
I couldn't justify buying it because I already have the MS Bluetooth 6000 keyboard and I don't even use that. But I got this as a gift and I have to say, I might use a keyboard more!
If you're on the fence, I give it a thumbs up! (I give the MS Bluetooth 6000 a thumbs up too).