Launching LR as a Beta was incredibly smart. A lot of pros are on Macs, and would seriously consider Aperture - once they move, they rarely come back. This way, not only are they aware of Adobe's product, but with it being a Beta they are involved, and through the forums there is a sense of community. So the app has momentum and loyalty long before release. Good marketing.
This will have hit Aperture very hard.
Well I don't know about that. The momentum behind LR seems to have died off, and to be honest, there isn't so much to Beta 2 beyond a pretty file browser and an alternative set of controls for ACR. I keep finding things that just annoy me... I suppose there are solutions, but I haven't got the energy to spend all day on Adobe forums... for example, how the &%Á%% do you turn off the abysmal "Lightroom Default" ? Why does Adobe insist on pushing some programmers idea of what looks nice on us (as in ACR, as well ?). First thing I have to do with every image is set the "flat" profile. Second, why are the ratings options so meek, and why can't I see them in the thumbnail strip in the Develop pane ?
LR seems a very lightweight application to me - a true successor to Kai's Soap. Maybe there will be DAM tools. Maybe there will be better interplay with Photoshop. Maybe there will be more powerful batch processing. But up to now, only the best efforts of the Adobe fanboys, propagandists and Lightroom cottage industry wannabees are keeping up the notion that LR is way better than Aperture. Actually, LR is to Aperture as ACDSee is to Photoshop. So it has a sense of community. Wonderful. That makes up for a lack of features, I guess. Pah. Emperors and lack of clothes come to mind.
Regardless, I still see no compelling reason to move to either from CaptureOne / Photoshop / iView MediaPro