Smart phones, when used appropriately, can give you a distinct advantage in the lab.
For example, rather than standing with the freezer door open trying to memorize which enzymes your lab has, use your phone to take a photo. Likewise, take a photo instead of jotting down the catalog number of each research component you need.
Then, head back to your desk where you can plan your experiment without needing to return to the freezer multiple times to double-check, or search for that piece of paper that you just had a second ago.