Also have a Microsoft Wedge, to use it with my Iphone 4. I have to say, I find this keyboard really a joy to use. Typing on it is very 'natural' and easy. Interesting about your comment, about IBM spacing. I think IBM spacing is really best..
By the way, I find this MS Wedge give a sharper and more pronounced feedback than my Lenovo thinkpad scissor switch. Really suprised by this MS kb!