Looking for a 7-8in tablet to use on my P3. Wanna spend about $100, $150 max. Would like something with a micro SD card, bright screen, and preferably gps (but not a deal breaker). Doesn't need cell service but wifi. There's so many out there, but I'm not sure what would work good with the P3. Anyone see anything out there in the US stores? Would like to buy online too and avoid the madness!