BobB-nw writes "Michael 'Monty' Widenius, the original developer of the open-source MySQL database, has left Sun Microsystems and is starting his own company, Monty Program Ab, he said in a blog post Thursday. Widenius and Sun had a slightly rocky relationship since the vendor bought MySQL last year for $1 billion. In a much-discussed November blog post, he trashed Sun's decision to give MySQL 5.1 a 'generally available' designation, saying it was riddled with serious bugs. Meanwhile, Monty Program Ab will be 'a true open-source company,' with only a small number of employees who 'strive to have fun together and share the profit we create.' The company will work on the Maria project, a storage engine Widenius and others developed, he wrote.'"