Remember when App Engine came out? > Google: "Run your app on our servers, and you'll scale really well, just like Google." > Developers: "Sweet! Where do I

Remember when App Engine came out? > Google: "Run your app on our servers, and you'll scale really well, just like Google." > Developers: "Sweet! Where do I sign up?" > Developers: "Wait - my app is actually really slow." > Google: "Duh! You have to write it exactly like we do to make it scale."