Take

Works the same as Basecamp (also from, uh, Basecamp), which has had an App Store app for years.

The two most compelling arguments against the iOS and iPhone user experience are the App Store policies and the sandboxing restrictions. Some of those choices are made in favor of privacy and speak for the user, but which users are better served by Apple getting their organized-crime-type cut than they would by getting a functional application designed the way Basecamp had in mind?