Pretty much this.Actually, the Galaxy just came out this week. So Samsung may see a lot GS2's fly out the doors after 2 pm today.
Even more so, the next Nexus will be just as, if not more formidable of an opponent. Cause it's gonna be pretty sick.
The iPhone 4s is just gonna be a boring spec bump glorified by an updated OS. Yippee...
The iPhone 5, should it happen, would put Apple right at the even mark.