There is no physical keyboard or mouse, and everything is based on touch.

它没有任何实体键盘或滑鼠，一切都是由触控来完成。

youdao

While there's no physical keyboard to search a word, an on-screen keyboard pops up when you select search.

ENGADGET: Sony Reader Pocket Edition (PRS-350SC) review

There's no firm timeframe on the Q10 model, with the physical keyboard, but Heins says he's hoping it will be ready in April.

WSJ: RIM changes name to BlackBerry, unveils 2 phones

Well this is interesting: a webOS dev spotted a pair unnamed devices in his log files -- one sporting a 1024 x 768 screen and a non-sliding keyboard, and the other a smartphone with no physical QWERTY input.

ENGADGET: Evidence of webOS netbook and keyboard-less phone pop up in developer logs