appspot

How do I change authorization of a site on my Google Appspot OpenID?

When I tried to log in to Stack Overflow, I initially used my Google OpenID (which looks like this "http://openid-provider.appspot.com/login") but I accidentally clicked on deny. Now I can't log in with this OpenID at all. Is there any way I can change the authorizations on an account in the future? Thanks! ...

Alternative to Google Appspot

Hi, I'm in a different country other than US.. but would like to use google appspot.. though i do not have a compatible phone. Is there any alternative that i could install on my own VPS? ...