I am planning on biking from Seattle to around 400 miles south of San Francisco this summer. Traveling is more fun with a companion, so I'm posting on various forums. I will head out there around July 8th or so and come back around August 25th. I am planning on doing a pretty budget trip, around 50-75 miles a day and camping or couchsurfing every night (have a tent, stoves, pots to share). I'm 26 and don't have much touring experience, though I did do eight days on the Oregon coast last summer. On the scale of laid back to super-intense, I lean much more to the former. Let me know if you're interested.
You can try contacting Jami, she's touring this summer, but I believe she's planning on doing a trans america route.
She's in Seattle now- you should contact her!! I believe she's doing that route too this summer.