No Exchange Server 5.5 Support after this year???

In this article published today (Migrating from Exchange Server 5.5 to Exchange 
Server 2003) it is mentioned that M$ will no longer support Exchange Server 5.5 
after this year. Could that be true, even when about 40% of the existing 
exchange servers are at version 5.5? This number comes from an article I read 
yesterday in the 10-20-2003 issue of eWEEK. I have no such problems, having 
already migrated from 5.5 to 2000 to 2003. However, I think I would really be 
upset if I were at 5.5 and wanted (or had) to remain. M$ is really good at 
force-feeding us new product, but after all, IT is their world!
 
Mark

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