Welcome to this week’s first edition of iPhone + iPad Gems! Today, we’re looking at five recent releases that vary from title to title in iPad compatibility: three are for the iPhone and two are iPad-only, but one of the iPhone games looks surprisingly good on the iPad, as well. Our top picks of the week are the iPhone releases iBomber 2 and Zombie Infection. Read on for all the details. iBomber 2 Last year’s release of iBomber was…