Question : SQL Server 2008 and 2008 R2 ?

Quick question for quick point for any SQL Saint :).
are there 2 SKU's, SQL Server 2008 and SQL Server 2008 R2 ? are these two different products as the Windows 2008 and 2008 R2 are ?
if it does can you point me to any documentation.
Thanks!

Answer : SQL Server 2008 and 2008 R2 ?

Random Solutions  
 
programming4us programming4us