Apparently, when my mom reached the Evergreens, she found that Grandma had woken up and was cheerfully visiting with everyone. (So, clearly this morning's message really was "we think it's going to happen" and not "we don't want to tell you it already happened until you're here.")
Of course this is wonderful news, but I hope we're not going to have this back-and-forth for weeks. I can't take the grief and waiting to be told what to do on a regular basis.
And all I can really think of is a Monty Python bit.
Thank you all for the messages of support. They were needed, and apparently will be again.