You can try doing the combo updater again and see if that fixes it. Have you tested if your internet connection or your apple ID account might be the issue? How about any software that might be running that could be interfering with this.
I have the same issue. I was able to download swackett but every other app thus far gives me the "We could not complete your purchase" message. I did accept the new T&C too.
Same problem here. I did the log out, reboot and all that. Finally I was able to download SketchBook Express, and it asked me to agree to the new Terms & Conditions (which I saw from other sites seems to be the problem). But then the same things happen when I try to download Alfred, another free app. I'm wondering if this just might be a system overload issue and maybe things will clear up later tonight or tomorrow.
I have a friend that said he could not download alfred either. I seem to do it just fine however. Give it some time and see if that changes anything. Also try logging out of the store and logging back into it.
Yeah I'm having the same problem however I Googled the apps I wanted to download from the App Store and downloaded the apps from the developers sites no problem. I also went onto the iTunes Store and downloaded some freebie TV clips with no problems so it's not an account problem. So this is definitely a problem with the App Store.
I am having this problem when I try to download "Solitaire Greatest Hits". The other applications that I have tried to purchase worked seamlessly. Does anyone have suggestions?
"Solitaire Greatest Hits" and "Alfred" "Can't be installed on this computer" although I've been successful with several others.
When the iTunes app store was newer I kept coming across apps that couldn't be installed on my iPod Touch for no apparent reason. Turned out the developers had to check boxes for devices their apps could be installed on. Some hadn't tested theirs on the Touch, some didn't care, and some just missed the box for the Touch.