I use openid not to have a single signon to 37signals apps. I use to to have a single signon period. Not just 37signals but a ton of other apps use it as well (and I wish all of them did).
Every time I see a web app supporting openid Im glad that I don't have to invent yet another user/password combo. again.
As to failing openid providers I have a good suggestion - use OpenId delegation to have a single openid that you can reroute to any openid provider you want. all it takes is a domain name and a very small file hosted on S3 (for example). Then you can switch providers at will.
> Every time I see a web app supporting openid Im glad that I don't have to invent yet another user/password combo
The problem is most people don't bother doing this; they just trust every site with the same password. The benefit I see in OpenID is that it is not a secret, and canot be "compromised" (intentionally or not) in the same way as passwords.
(I also am one of the few, it seems, to use OpenID for my 37signals account)
Every time I see a web app supporting openid Im glad that I don't have to invent yet another user/password combo. again.
As to failing openid providers I have a good suggestion - use OpenId delegation to have a single openid that you can reroute to any openid provider you want. all it takes is a domain name and a very small file hosted on S3 (for example). Then you can switch providers at will.