Usually when I use a hardware slide out keyboard the keys are too small and too close together. (littletechgirl.com)
I still remember the early days when I had a HTC phone with slide out keyboard, stylus and Windows Mobile. (indianexpress.com)
Xperia ™ pro introduces the subtle but fast Type & Send functionality eliminating the need to open a dedicated app for each type of message, and Smart Keyboard that triggers predictive messaging actions automatically when the user slides out the keyboard. (eurodroid.com)