LinuxInsider had an interview with Mozilla CEO John Lilly, you can read it over here. One of the things he revealed is that the first alpha versions of the mobile Firefox browser are expected in a few weeks:
Q: If someone ever comes up with a better open source browser than Firefox, and Mozilla disappeared, would that be a success or a failure for the company, or a little of both?
A: It's not exactly Plan A, but remember, the mission is to keep the Web open. Our most leveraged tool is Firefox. We know we have to build a great Firefox 3 and 3.1 and 4, and great mobile browsers, or people won't care as much about our products.
Q: And what are you doing in mobile?
A: We want to make sure that the Web on mobile is more like the Web than what the mobile industry offers today, which is closed, separate networks and not a very good information-getting experience for the user. The first thing is to bring Firefox to mobile devices. We're working on that, and we'll see some alphas in a few weeks.