That's what I do. I try not to use my Droid much (mostly as a phone) and mainly use my Galaxy Tab as my Android tablet while my Droid saves battery life to function mainly as my communication device.
That's odd. By DEFAULT the Tab has and uses Swype and it's FAAAAAAR from hard to use and it does a LOT of typing for me VERY VERY fast. Also--in case you want to get arrow keys, be sure to swipe from the bottom-left S-swype logo to the SYM key... it switches to the cursor keys mode (arrows, home, end, page up, page down, etc.). Generally, Swype has made my life worth living. If someone switch the keyboard over to the Samsung keyboard (which I don't like), you can easily switch it back to Swype by holding down your finger on the gear key then select Swype.