Steinberg Groove Agent 4 Trial is now available. Requires eLicencer for the 30 day fully functional trial.
Groove Agent 4 Full is now available for purchasing at $179.00 as a download from Steinberg web store.
Upgrade price fro Groove Agent 2 or 3 is $99.00.
http://www.steinberg.net/en/newsandevents/news/newsdetail/article/now-groove-agent-4-full-and-trial-versions-2870.html