The iPhone 5 is here, so it’s time to start loading it up with apps. After all, without apps that connect us to Facebook, let us use our phones as universal remotes, and serve as digital bubble levels, would we really pay for those expensive data plans? When it comes to business apps, though, finding the right one for the right task can be tricky. There are so many apps out there that it’s tough to distinguish the mission critical from the mission impossible. Here are 25 that should get you started, and should help you convince your IT department that welcoming your iPhone 5 into the corporate network is indeed a good idea.