I can sympathize with Olaf's frustration. However,. when the company has been asked for the information, and there hasn't been a response, I'd suggest the community figure it out. Hell, enough people have already completed the game that the information is available if they'd keep track of it.
Due to work, fiancee, etc. I'm going slowly through the game. But, I have a sheet of paper next to the chair where I play, and for each level I write down the changes to AB, saves, and the new feats given, if any etc. It takes about 2 seconds and takes nothing away from the game experience. You can determine the SP fomula for the starting classes in about two minutes but I don't have a clue about changes with the prestige classes. If six folks who plow through these games in a day would do the same, the information would be available within the week.
So, any volunteers? I'll keep at it but I'll be slow (most employers don't give time off work to play games and women don't take kindly to being told that wedding planning takes a backseat to video gaming for some unfathomable reason). I'm going with a guardian/weapon master. Anyone who is faster than me and wants this guy, go for it. Only five more straight combination volunteers are really needed in my opinion. There are questions of when to switch classes, etc. but that can be all worked out.
Is this solution ideal? Not really. But if Obsidian doesn't respond to the requests, it's the quickest solution that presents itself. Part of the appeal of many RPG's is that the system behind the game is not opaque. Fast/Slow does not adequately describe feat progression. Knowing a guardian gets a feat at 1,2, and 3 (as far as I've gotten so far) is helpful. But I haven't a clue whether he'll get one at 4, or if it'll be 5, or if ... As said above though, this community is large enough to mine that information in short time.
So, how's about it olaf? Willing to participate? Anyone want to start a thread and collect volunteers to keep a running set of posts about their participants advances? The information could be out there in a few weeks. And then maybe we could ask that it be pinned.
As for me, I'm off to bed so I can drag my ass to work in the morning. Maybe I can get a chance to play an hour or two Wednesday.