When I first upgraded to ios6 and 10.8.2, my imessage on my Mac allowed me to enter a phone number, and I was able to get all imessages on both my phone and mac (my friends all use my phone number instead of my apple ID for imessage). Suddenly, last night, something changed and my imessages on my Mac doesn't work the same. I tried logging out and back into imessage on my Mac, but it doesn't show the phone number option like it used to - just my email address. I rebooted my iphone, but still nothing. I'm receiving imessages on my phone just fine and my phone number still shows up on my iphone to receive imessages, I just can't add it back to imessages in 10.8.2. Anybody else have this happen and know how to fix it? Thanks!