Is it possible to configure Mac App Store application sandboxing if I'm using Xcode 4 + Snow Leopard? I'm reading the guide by Apple but I don't see anything about entitlements in the summary tab. Does this mean that all MAS developers will need to build their app on Lion?
I found that the best way to go was to install Lion and use Xcode 4.3 or up. You will need to look for messages from sandboxd in the Console app to be able to catch sandbox violations and add the appropriate entitlements. AFAIK, this workflow wont work on Snow Leopard as sandboxd is not available.