I am just learning how to use my new Charge and I get a bunch of mixed signals on this forum. What are the must have apps for max battery usage, keeping viruses out and just plain MUST HAVE'S! Also, is there an app for a keyboard out there that is similar to how the blackberry works? For instance: hit the space bar twice and it puts a period at the end of a sentence. Oh and one with a large spacebar. I put a period between everything using the one that comes with the Charge. Thanks!!!