On Wed, Nov 5, 2008 at 11:26 PM, Dick Hardt <dick.hardt at gmail.com> wrote: > > On 31-Oct-08, at 7:58 AM, Ben Laurie wrote: >> >> Are you suggesting that Google would serve an opaque ID in the user's >> domain? > > sure, why not? Well, no particular problem serving one, but migrating it seems a bit more problematic.