Notification settings inconsistencies
I just installed Beem 0.1.7_rc1 from the Market.
When checking the settings for the first time, I noticed that vibrate was set to no (and I think the notification sound was set to silent, but I'm not sure).
However, on receiving my first message, my phone vibrated and made the usual notification sound.
Toggling vibrate on and off again in the settings fixed the problem and deactivated vibrate.
This is on the Galaxy Nexus, Android 4.0.2.