Jay Leno's decision to write his own monologues falls in a dark gray area of the WGA strike, but Conan O'Brien seems to go the lighter gray route by ad libbing in a quasi-reality show fashion:
That's right - Conan rocks! On last night's show, Conan sang a rockabilly song with the band. With these one-man show antics, I'm sure Conan can endure the rest of the strike without his writing staff.
As a reminder of what a great writer/writing staff can do, here's the next episode from the first season of Arrested Development (as we've been posting Hulu-approved entire episodes of shows for the couple of months):