Whats the difference between all the different types of tables out there ? I see 7 inch tablets that go by the names of APAD, EPED, IPED, iRobot etc etc . I have a 7 inch that runs on Android 1.7 which I bought from Electronic Dealz . Chip is VIA VT8505 ARM926 400-450MHz and it has 256MB memory. Works great for surfing the web, chat etc. Watch youtube and other vids too. I also bought a 10.2 inch from ElectronicDealz. That is more upgraded with Android 2.1 and has better screen quality runs faster and is great for watching high def videos. I notice there are bunch of other tablets out there with varying prices. What is the difference between them ? They all seem to be 256 MB memory and Android 1.6, 1.7 or 2.1/2.2. What else is different ? the chips in them ? Are certain chips better than others - rockport, VIA etc What generally should one look for when buying a tablet ? What specs etc ?