Most of my gaming these days is on an iPad during my train commute, so I'm really looking forward to this.
I'm a little surprised that the Tyranids show up as the bad guys so often: Space Hulk, Deathwatch the PC/iPad game, Deathwatch the board game, the board game with scouts in the jungle... imo they're usually less interesting than humanoid bad guys that have a little more character. But at least in space they won't be melee-heavy. Always more fun if they shoot back.
Can't wait.