I see lots of discussions about favorite iPhone apps for nursing students, school clinicals, NCLEX, etc. But I'm wondering what iPhone apps are favorites among working nurses and why. I'm especially interested in med-surg, general adult nursing, drug references, and maybe some more medical-leaning resources (DDx, apps that medical residents might use). Any thoughts? Or do a lot of you find that it's really not needed/practical to use iPhone apps in your daily nursing?