You can charge anything you like for your apps. I have been running an app for 2.5 years for which I charge customers annually.
I also use my own authentication scheme. It is harder than it sounds to do this securely, but it is perfectly possible. Finally, Appengine will service HTTP and HTTPS requests, from whatever device they originate. However, you can't use any other TCP/IP services/ports - it has to be HTTP or HTTPS. This limitation has frustrated some people, but since third-party firewalls may filter non http ports, this is actually a good practise. Enjoy Appengine - when I started with it it was a risky decision to go with such a bleeding edge technology, but I haven't regretted it once and would now recommend it to anyone who doesn't have existing infrastructure and the people to support it properly. Appengine is for you if you are developer who doesn't want to be a part-time sysadmin - Google's finest do all that for you. In return you do have to program to their APIs which is sometimes a wee bit more work, but in my opinion the extra hassle is well worth the peace of mind. Cheers! Greg. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
