By "Big Button" I mean one of the same size as the Google button.
This would be good for 2 reasons.
- It would encourage users to investigate and use Profiles, which would allow them to take advantage of the unique per-domain qualities. At the moment Profiles seems like a second class citizen.
- You'd actually know it was there. Especially as the giant "standard Google" button makes you think that it's not worth looking further. (And I'm clearly not the only one who found this, as this exists: Clicking Google Open ID still uses old Google OpenID URL
It makes sense for a further reason; if Big Buttons are associated with the most popular account types, and Google Profiles uses the same account as "standard Google", it makes sense to promote it to the big leagues.