Just wanted to post a heads-up as I know of at least one dev here (TinMan) who's got bundles that overlap apps. People have reported in the Audiobus forums having problems with the Holderness Media bundles - having Completed one bundle, iTunes tells them that the other bundle is not available because one of the apps has been used to complete another bundle. (In this case the Universal app Echo Pad is in both bundles, the other 4 apps in each are either the iPad or iPhone versions...)