I can type fine on an old fashioned keyboard, but I have no idea how folks manage to do it with a virtual keyboard, especially on a screen as small as the iPhone's. I have nothing but respect for those who can.
Don't sell yourself short, even looking at the keyboard while you type will help you memorize the location of the keys.No chance at all on my iPhone....better on the iPad, but on my Logitech wireless KB in the iMac I can pretty much touch type...I glance down if I need to shift or find a symbol, but that's it.
I remember doing a typing test years ago which to my amazement I passed...I think you had to hit 35 WPM with something like 2 errors allowed.
Luck, pure luck....
Kind words, but I doubt my speed is likely to increase much now...most of what I do on my iMac is Logic / Aperture based, so there isn't a lot of typing involved there...I'm pretty quick on this ( IPad) though...Don't sell yourself short, even looking at the keyboard while you type will help you memorize the location of the keys.