We regularly receive more than twice as many proposals as we have slots to fill (lately, 5x). It is tough choosing. We expect many high-quality proposals to choose from this coming year too, so we need reviewers! Be aware that as proposals may contain sensitive information, only people known in the Python/PyCon community will be invited to participate.
Expect to commit, on average, from 4 to 8 hour per week, from August into December.
If you're ready to make the commitment:
The more reviewers we have the fewer talks each person will need to review. Our review meetings have evolved a process which is now quite streamlined, fun (yes, fun!), and rather consistent.