Google Voice is great. It gives you a one number that you can give out which rings different phones (or goes straight to voicemail) depending on the caller. You can even call someone and have them see your Google Voice number by calling your Google Voice number, logging in, and pressing 2. Ah, but how much easier would it be if we didn’t need to take that extra step. That’s the point behind these mobile apps. On Wednesday, Google is releasing mobile apps for both Android and BlackBerry. These will allow users