A slashdot article that you might find interesting :

MySQL and SAP join forces
http://developers.slashdot.org/developers/03/05/23/1826202.shtml?tid=137
&tid=198

I hope nobody here gets offended, but someone on the page joked about
how the resulting product will be called 'mysql firebird' or 'mysql
mozilla'. Funny in a painful way.

Look for the link about a 'low-end' db2 somewhere in that page too.

regards,
sugi.