I didn't know that. I thought that was something the iphone had over android. Did that recently change?
So, then back to my original question. My primary account on my phone is
myname@mydomain.com, with mydomain being a google apps for your domain account.
I originally tried using that with my nook color and I got the problem where the market said "starting download". I wiped and then just used a new @gmail.com account to sign in as my primary and that worked.
Again, not sure if it was the wiping or the new account that fixed it.
Almost all of the NC rooting guides make it a point to note clearly that you MUST use an @gmail.com account as the primary account.
So, what's really correct here?