Yes... inevitable came Microsoft to follow the CEP-wagon, model Hype. Please take a look. http://msdn.microsoft.com/en-us/library/ff518551.aspx It it just me or are those numbers somewhat far beyond their competitors, StreamBase, Esper ? or maybe just more realistic? What do you think? Snippet from the link: We recommend the Premium edition for applications that require an event rate that exceeds 5000 events per second or has a latency tolerance requirement that is less than five seconds. We recommend the Standard edition for applications that have an event rate requirement less than 5000 events per seconds and/or a latency tolerance requirement in excess of five seconds.