The Open Mob's mission is to promote and support open source mobile operating systems and platforms, with an objective of ensuring that at least one such OS remains commercially viable at all times. In other words, we want open mobile, and want to demonstrate that open mobile can be a success.
The Open Mob is an umbrella. Right now, it has one interest group — The Open Mob for Android(TM) (a.k.a., AndMob). However, if other people want to set up other interest groups for other commercially viable open mobile platforms, The Open Mob might be a possible home.
Over time, The Open Mob will also get into a bit of lobbying, to ensure open mobile becomes more open, not less open, over time. Stay tuned for more information about this.