You might be right that the "SQL-agnostic" argument was not well formed. I basically meant that the Django ORM has always been very object-oriented, and it has

You might be right that the "SQL-agnostic" argument was not well formed. I basically meant that the Django ORM has always been very object-oriented, and it has avoided SQL-specific concepts like WHERE clauses as much as possible. And because of this, it wouldn't be so hard to make it work with MongoDB, except for more complex relations. In fact, this has already been done by django-nonrel for 1.3. If anybody thinks the article was satire, it was not. In fact it was written during a MongoDB conference. ;-) I really am worried that as MongoDB has passed the hype phase and is now becoming a regular and supported part of web technology stacks, Rails is the only heavy-weight framework/ecosystem that really supports it. I also think that MongoDB currently adds most value to small/mid-size web projects, whose development speed can benefit from the schemalessness and other flexibility compared to RDBMSs. It's not that relevant whether it can actually be used to build the next Facebook or Twitter. (I wrote the original article.)