As people get their heads around Google App Engine, they see some things they may not like. Namely, the dreaded "lock-in."
Tim O'Reilly dissected whether Google's App Engine is a lock-in play on Monday, and RedMonk analyst Stephen O'Grady hit the issue head-on with his excellent Q&A on what Google App Engine actually is.
Developers for years have been clamoring for more openness and standards. They are tenets of the open-source movement.