Hi, I'm currently looking at a teclast p81hd 8" tab with an A8 rk2198 cpu. Anyone out there know if there's an ics upgrade for it? Its currently using 2.3os. I want to know if its worthwile dropping down to one of these rather than pay more for a 9.7 with ips & an extra 40gbp price tag 8" maybe big enough. Any other budget suggestions welcome.