I typed out the above message in the minute I had planned for, so overall the speed isn't bad, as long as you do start trusting the corrections. It missed three mistakes in that, but they were pretty bad ones, and a quick proof reading session would have caught them. I did that with the normal orientation of the keyboard, and using the landscape mode keyboard would have probably resulted in a few more words before the minute was up.

For comparison, I'll have to try typing fast with the tiny keyboard I have for the CarPC.