Hi guys, I am new here.
I am planning to buy a tablet and Kindle Fire attracted me the most among all. But I do have some question that I would like to ask before I actually lay my hand on one.

Does the Tab able to open and edit Microsoft office documents like Words/Excel/Powerpoint? How much function will there be or just the minimum required tools just for edition?

I have seen an adapter on Samsung's website that allows the plug-in of USB devices such as keyboard. Question is, am I able to plug-in my external HDD and play my video straight away? Tab is the host.

Previous posts about the Tab 7", Wifi and 3g model having different hardware specification, with the Wifi version having a lower, slower specification. I wonder is this the same for Tab 10.1?

I just have 3 question at the moment.
Appreciate all the answers to clear my doubt.