I just got a G1 phone and I was playing around with google charts. Turns out they do QR bar codes. It turns out that the barcode scanner on my G1 reads the QR. So I made a greasemonkey script that adds the barcode to the bottom of every page. (After the body tag until I figure it out more)
http://deathbyescalator.com/barcode.user.js
I can now just view a site, scan it and bookmark it on my phone.