Looks like Newgator is exiting the business domains for which it’s most widely known
Despite its popularity, one feature that Google Reader doesn't support that Newsgator does is authenticated feeds. For people who used Newsgator solely for that feature, their opprobrium on message boards and in comment threads is palpable. Interestingly, the last answer in the Newsgator transitioning FAQ points to another reason for the switch: a growing emphasis from the company on their enterprise-based business.
Newsgator recommends that all FeedDemon and NetNewsWire readers upgrade to the beta builds before August 31, since only those latest versions contain the Google Reader option. It gave no word on when the beta builds would finish development, but readers who want the current stable builds can get them for Windows and Mac.