Not So Fast NoSQL Evangelists

I found the comments in this InfoWorld article about the capabilities of MySQL vs a noSQL DB interesting.

"A lot of people think they have a big data problem, and a lot of times they don't," said Daniel Austin, who is the chief architect for PayPal. "They have an urge to find a big data solution to a problem, because it looks good."

I still wonder if companies like PayPal and Twitter are too closely tied to MySQL to pan it or if you can tile and shard your way to high performance without going to NoSQL.