Well, that didn't take long. Monty Widenius, one of the founders of MySQL, resigned from Sun Microsystems last week but has already invested some of his hard-earned MySQL dollars in IT Mill, a Finland-based open-source start-up focused on the development of Rich Internet Applications.
While no mention is made of anything other than a financial investment and advisory role for Monty, it's good to see him sticking close to open source and to business. Monty notes that he sees 10 to 15 Finnish companies worthy of investment. It's safe to assume he'll have some money left over, even despite the strong euro.