Should MySQL users stay or go; now that Oracle is in the way?

How do MySQL users feel about Oracle Corp.'s takeover of the open-source database through its acquisition of Sun Microsystems Inc.? Some say the deal will be the ruin of MySQL, while others say it could be a boost for the open-source database.
Oracle and MySQL's many competitors in the database arena were only too eager to offer explanations as to why those fears will be realized. Other observers, however, argued that Oracle may prove to be a positive force for MySQL.
One of MySQL's prime attractions is that nearly all of its features are available for free, even those running production databases. Less than one in 1,000 MySQL users ever pay the company a dime, former MySQL CEO Marten Mickos famously admitted.
Sun tried last year to edge toward a dual distribution model, reserving certain key features for paying customers. It quickly backed down in the face of an outcry.
Don't expect Oracle to be as abashed as Sun.
"Companies think 'price increases' and 'usage audits' when they think of Oracle," said Ed Boyajian, CEO of database vendor EnterpriseDB Inc.
Oracle will always have to at least nominally support the free community edition of MySQL, the one that has generated more than 100 million downloads.
But given Oracle's rapacious reputation, users who have invested their time mostly in MySQL should expect to be strongly pressured to open up their wallets.
"Oracle claims in their release they can wring more profit out of existing Sun assets, but history shows this will largely come out of users' pockets," said Roger Burkhardt, CEO of open-source database provider Ingres Corp.
Microsoft Corp., who’s SQL Server competes fiercely with both MySQL and Oracle's own database, tried to be subtle while sounding the same alarm.
"Customers should ask themselves if this will add more complexity and cost to their environments at a time when the industry is asking for more clarity and value," said Neil Charney, general manager for application platform and developer tools at Microsoft.
Oracle could achieve this through several tactics done in concert. First, it could steer MySQL's development away from features such as scalable clustering, said John Newton, chief technology officer at content management software vendor Alfresco Software Inc. That would be fine for Web developers, who make up the bulk of MySQL users today, but it would be bad news for would-be enterprise users, he said.