I recently bought this Microsoft tablet for myself. I find this phone really great but I am missing some apps like calendar, ringtone maker, and latest themes in it. Can anyone provide me with links of the websites where I can look for the latest applications that can be played in my latest tablet? I want them for free as I do not want to spend any more money after investing such a huge amount in tablet. I do visited some websites but they were the downloads were not for free. Any suggestion would be really helpful for me.