If FCPX was sooooo great, why did Apple go back and rework it because of the outcry from the pros who depend on it. People create threads because they have something to say. If you don't like it, then move along.
I'm not a video editor, but I know that they said certain features were still missing but would be added, and recent updates have indeed added them, and they are said to be very solid implementations of those features. Whether that is enough for the high-end, I don't know, but the uncertainty felt by pro video producers along with the inability to import FCP7 projects have seen people migrate. When you invest so much into a program for your livelihood, you want security and backwards compatibility. And please, be civil, I know there's some frustration here, but it's an open forum and he's entitled to express his opinion; I've heard that for some people that hasn't invested a lot of time into learning and using FCP7, the new version is in fact very good, at least for a segment of the market, the sticking point was the missing features and backwards compatibility. For new users, the latter is irrelevant; the updates likely addresses the former.
An issue here with Aperture could be the way Jobs liked to maintain a small core of programmers of supposedly no more than 100 so he could have an overview of what everyone was doing, since he was a micromanager. That meant devs sometimes had to move between projects, esp as IOS was developed. It is likely the same team working on iPhoto, Aperture, and the IOS version of iPhoto, so just as development on OSX slowed when IOS was developed and refined, development of Aperture is likely slowed as both iPhoto and IOS iPhoto was developed. And if they throw a major rewrite of the guts in there to boot, much like FCP, then it could account for the delay. One can only hope it is indicative of a major overhaul of the engine, Aperture seriously needs better performance and resource-use. For example, I just tried exporting 27,000 photos to a new library; I left it overnight, and it was still at it when I got up. The in-progress library was 7Gb by then, most of it in Thumbnails, the rest in a Database folder. And this is for a fully-references library! It was slowing my Mac to a crawl, so I quit it. Seriously, 6Gb of thumbnails and 1Gb of database, not good. And it wasn't finished. Previously before deleting the Previews and Thumbnails, the main library had been in excess of 30Gb, fully-referenced.
I have a sense that A4 is close, and will likely have an IOS-like overhaul like they are want to do, for better or worse. As long as it isn't just a cosmetic overhaul with no major new features, most importantly lens profiles and noise reduction for me, I will not abandon Aperture just yet, even as I will go experiment with LR4.