I talked about Edison Mail a few weeks back when they had announced their new OnMail email service. Today, Edison Mail is back in the news as they have debuted on the Mac App Store. Like I mentioned when CleanMyMac X debuted on the Mac App Store last week, apps joining the store seem to be a growing trend whereas a few years ago, it was quite the opposite as apps were leaving the Mac App Store over revenue and sandboxing concerns. more…