Hi everyone, as i am ne to tablets etc. i have a few questions i would like to ask 1.Is merimobiles.com a legitimate website? 2.What are the differences between the following tablets. Herotab RK7 Herotab RK7 800Mhz Android 2.1 1080P HDMI/USB +free case Herotab X5A Herotab X5A Multitouch Gsensor 800Mhz Android 2.1 1080P HDMI/USB+free case And are they worth buying? 3.Is it possible to insert min keypads into them? 4.If theres anything you know about these... please share your knowledge. thanks!