Looks like Fallout fans were able to ask the developer at Obsidian questions related to Fallout: New Vegas and as you expected the questions they picked to answer were very insightful;
Will we be able to level past 20? Or 30?
From Justin via Facebook
JS: Our level cap is 30.
Will each faction have a radio station?
From @hawker101 via Twitter
JS: Not every faction has a radio station, but I hope people are happy with the radio stations, DJs, and music selection we have.
Will there be any sort of party involved? A few companions to tag along?
From Rui via Facebook
JS: Yes. The player may have one humanoid and one non-humanoid companion at any given time.
You can read the whole thing here.