I can't stay logged into Metafilter when using an iPhone! When I bring up the page I'm not logged in. I log in, cool, but when I click on a thread to read comments or move to The Green or Grey or navigate to any of the site's pages I am no longer logged in--prompting me to re-log in every time I switch pages. I am running 2.1 on a jailbroken phone. What gives?