Hi all,Am a newbie to Android tablets/devices both in terms of hardware and software. So if my post is posted in the wrong thread or reposted pls pardon me. I just want to understand a few basics.As you all may know, now the market is being flooded by those Chinese made Android tablets. And many of them looks good (at least on paper) and at a very good price. But the problem is most of the time when come to chinese goods, they don't usually do what they claims (if you know what i mean). and the best part most of the salesperson don't know anything about the products they are selling especially when comes to tech gadgets like the Android tablets.So here i am seeking help from you gurus and hoping i can start my Android journey on the right step. Below are a few questions. Hope I can get answers (links to somewhere where i can read up or anything).1. What are the conditions (CPU make, firmware, etc) to fulfill if i wan to upgrade/root/hack the original Android OS? Cos most of the chinese made tablets are running on Android 1.5. Hoping to be able to upgrade the OS whenever a newer one comes out. Like the latest 2.1 And be able to download new apps from the apps market.2. Which CPU chip is better and what are the common CPU chips in the market now? I know there are the Rockchips, VIA, Telechips.3. Can we tell what are the hardware (CPU make etc) and software (OS/firmware version, etc) that are being used in the device from the system setting or something?4. I read somewhere that not all CPU chips can be upgraded to the latest OS. i.e. that any upgrade is determined by the CPU chip. Is it true?5. As for custom ROM, is it also device dependable? Like is there a generic ROM for all devices?For now these are the questions which are bugging me. Hope the gurus here can enlighten this Android newbie.Sorry for the long winded post and thanks for any help.