#1 Has never been an issue for us
#3 Is incorrect with the new task queue upgrades
#6 We have a full-text system working just fine
#7 Is a benefit when working with a distributed datastore
#8 DB performance after the recent updates has been stunning
#10 So they badly designed their queries and blame app engine?
#11 Is flat out incorrect
#12 What database is immune to failure? Would love to know
App Engine doesn't do everything, and no one is claiming it does. We have a secondary VPS we offload certain image processing tasks for example. But what it does do is extremely powerful from a develop perspective, and the application-centric model, like heroku or engine yard, is where things are headed. I would much rather leave the server and scaling issues to the experts so I can spend time improving my application.