I'm currently using a Samsung Galaxy S2 and I also use a Samsung Netbook as I find it much easier using a proper keyboard for such functions as accessing bank accounts. My netbook is playing up and I'm considering a decent-sized Android tablet. Using my netbook I have a wi-fi booster, which is pretty essential for me. I'ts one of those aerial thingys that plugs into a USB port. Is there such a booster available for Android Tablets and do tablets have a socket to plug in an external device? Thanks. PS Can I use apps that I've bought for my SII on a tablet, or are they only licensed for one device?