Maybe Google will put a virtual keyboard in javascript on their site especially for you

Seriously, the browser portrait mode is work in progress - it's not finished yet. It's still very useful for reading long articles, online books, forums with lots of posts (like this one), facebook etc. - anything long with lots of vertical scrolling.

You need to turn to landscape mode for entering text, is all.

I would have liked to use the cursor keys to scroll the browser in portrait mode. Oh well. It's back to the "hundred swipes of the stylus" to scroll to the end of a long page.