Forrester has been hearing from vendors and clients who have been waiting for a clear standard to emerge around federated access. "This is going to cut out some of that waiting-out period," Cser said. "It's going to promote the spread of identity federation."
The fact that such high-profile companies are joining OpenID will likely have a halo effect on initiatives like Project Concordia, which is working to create interoperability between identity protocols.
"OpenID getting more attention will clearly help with Project Concordia's integration efforts as well," Cser noted.
There's a second factor to consider when weighing the future of OpenID, according to Cser. "Vendors support the technology, but who are going to be the trusted OpenID identity providers? That is something we are still waiting out," he said. "It's one thing [to use OpenID] on a blog site ... but how is it going to work for payments, for higher-value transactions?"
VeriSign, one of the five companies to join OpenID's board, "has been a trusted provider of SSL and Web security technologies and I would not be surprised if they continued on this path ... they could become one of the trusted OpenID providers," he said.
In addition, it will also be of interest to see whether software-as-a-service vendors adopt OpenID, a move that could further drive adoption, he said.
This story was updated on February 7, 2008