Can I do that once and that's it or do I have to do it every time? No need for split keyboard. I can easily reach more than half screen with thumbs on 5.5" . I have big hands so I can stretch to 2/3 but I think that I will be OK for people with smaller hands to. And it will be way more comfortable for a lot of typing than that small keyboard on N900 where my thumbs was always bent at some angle.