I stopped at curiosity when I realized it was just too expensive. The data store is the big problem. Amazon S3 just slaughters it on price. The pricing is also

I stopped at curiosity when I realized it was just too expensive. The data store is the big problem. Amazon S3 just slaughters it on price. The pricing is also unclear and hard to calculate, and leaves me with this lurking fear that I'm going to get surprised in a bad way. Other than that, the app engine itself is definitely interesting. The idea of not having to manage your own infrastructure is appealing. If they could fix their pricing model and add a few features (better SSL support, ability to open raw outgoing connections, etc.) then they'd have something compelling.