As planned, I now have the release version of Ultimate installed in a dual boot config. I'm posting this only to give my first impressions of AH2 running under Vista, not to start any one OS vs. the other arguments.
Machine specs:
HP Pavilion M7680N Media Center PC
E6400 Core 2 Duo
2GB ram
Realtek audio
7300LE graphics card
Vista Ultimate 32 bit
MS Force Feedback Pro stick
Logitech headphones/mic
I spent maybe an hour total Wednesday and Thursday in one or the other main areans just messing around getting a feel for things. Today I spent maybe 2 hours in Blue after setting the standard Vista performance settings for max performance, killing 4 or 5 running processes from Taskamanager. I did not go into system services and kill anything from there.
While I never got into the vicinity of any massive furballs with the consequent FPS hit most people get in such a situation, I did get into areas of what I will call "normal activity" for me. Vista gives me a max refresh of 60 since It doesn't recognize my monitor other than a generic flatpanel, whereas running under XP I normally have my refresh set at 75.
Under XP, using an alternate hardware profile with about 17 running processes, I normally get frame rates from 45 FPS ot 75 while in the air or at a field gun depending on the level of obect activity. Today running under Vista my frame rates were 39 - 60 in simlar areas of object activity. Most people consider the 7300LE to be a low end PCI-E card. I would hope performance would be somewhat better with a better card.
When in the hangar I received alot of snap/crackle/pop. For whatever reason that goes away once I've left the hangar and sound is pretty much as usual with only the very occassional snap or pop. Under XP my sound is flawless.
With the above performance hits noted everything seems business as usual. I got shot up plenty as I was playing with getting view set and remapping my stick on the fly as I didn't take the time to do that offline. But, I get shot up plenty anyway.
IMPORTANT NOTE: I haven't tried GV'ing yet. Like most people (I think) I usually take a big performance hit running around trees and such. I'll be curious to see how it does there.
So while I'll probably still continue to run AH under XP, I don't have any real qualms so far (SO FAR) about running it under Vista. I'm posting this mostly for the benefit of average non-techie users who are thinking about buying new boxes with Vista already onboard. But if you are one of those folks I definitely would not advise getting a low end box!! Repeat: DO NOT GET A LOW END BOX!!
Let the flaming resume...