I just got home and found an email waiting for me with some good news: my cell phone has been found! Somehow, it made it's way into the coat pocket of one of the guests. He just looked at the coat and found it tonight. Luckily, my business cards are in it so he knew how to get ahold of me.
For now, I have a loaner phone, so feel free to contact me at my normal number. Yay :)