[mark_l_watson]

A useful article for people to read before using AppEngine. I only use AppEngine for my own projects, so far no jobs for customers.

I was aware of most of the limitations of AppEngine that the author of the article mentions after just a few hours of experimenting with AppEngine. Now, AppEngine now no longer gives me many problems.

I think the lesson is to do a lot of experiments before committing to technologies.

I don't use the Python SDK. Most of what I have done has been using Java (but with small Clojure and JRuby experiments). One thing that helped was to start using Objectify instead of JDO (as an example).

[ajessup]

Can definitely advocate Objectify. It's much nicer to work with and if you're working with Google Web Toolkit it is also GWT-serializable, so you can use the same objects in your DAOs and GWT UI.

[Cafesolo]

Agreed.

At this point, I think using JDO on App Engine only makes sense if you're porting an existing JDO application to App Engine.

If you're starting from scratch, Objectify is the way to go.