After all the to-do Monday morning from Microsoft, it looks like the My Phone beta — read our full post on the announcement here — is starting to go live. But it looks like it might be a rolling start. I was able to get the install file for my phone, while Malatesta — infinitely smarter and better looking — could not, at least at the time of this writing.
It took just a couple of minutes to sync my 499 text messages. I'm hooked up to an Exchange server, so that's about all I could sync. Anything running through Exchange is deemed already backed up and won't sync with My Phone.
Give it a shot at myphone.microsoft.com and let us know in the comments if you're in.