Honestly it's pushing me to look for other hosting options (Rackspace, AWS), though I'm really really hoping I won't have to do that. I've invested a lot of effort in various App Engine APIs, and it would be a pity to have to re-do all that work.
I'm writing an https frontend in Go which proxies to App Engine. It increases the bandwidth bill slightly, but means that you can take full advantage of the App Engine APIs. You can see the work in progress here:
In the next weeks, I'll also be adding optional support for WebSockets which could be linked to a local process for support for custom "comet/long polling" use which App Engine doesn't properly support yet. Email me — tav@espians.com — if you'd like to know more or need any help with the code.
Honestly it's pushing me to look for other hosting options (Rackspace, AWS), though I'm really really hoping I won't have to do that. I've invested a lot of effort in various App Engine APIs, and it would be a pity to have to re-do all that work.