Hey guys I'm looking some advice on these novo products as im not sure which one to buy. Can u please give me a short response on each of them., in your opinion. (a one sentence response is fine ). - ainol novo 7 paladin - ainol novo 7 basic - ainol novo 7 advance II - ainol novo 7 elf Do they all have their own specialities? Btw which has the best battery life and is http://android-sale.com a safe site to purchase a tablet? Any other sites recommended.