This is untested but just might work. Once you have the web gallery button on your iPhone you need a gallery setup on .Mac. For those of us in the middle of projects and unable to upgrade what if you visit your local Apple Store and put your .Mac ID on a machine just long enough to create the web gallery. Presumably one need not go back in through iPhoto regularly. There is the risk that upon upgrading to iLife '08 it won't work with the 'foreign' gallery but might be worth playing with.