I am looking at several tablets, Including the Asus Transformer T100, some of the Vostro 11 Pro tablets, the Vostro 8 Pro, and Windows Surface tablets. I have researched the processors, and some of them can support 4GB of RAM, but the tablets only come with 2GB. Are there any tablets that cam be taken apart for upgrading components such as RAM and USB 2.0 to 3.0? Also, some of the processors can handle 64 bit Windows 8, but the tablets come with the 32 bit version. Can this be upgraded or changed? I can research the hardware components to see if they will accept such upgrades, but do not know if there are other hardware components aside from the CPU that I would need to check for compatibility; although, any additional advice would of course be appreciated. I really need to know if any tablets out there can be taken apart for modification though, as I can attempt this in stores with display models, and the manufacturers will not answer me when I ask, because they want me to buy the more expensive models directly from them or they do not want to say yes and then have me complain if I break my device. Thanks.