The 25-year-old Samaraweera, who had taken just five wickets in his previous nine Tests, began the slide when he had Kapali caught bat-pad by Jehan Mubarak at short-leg for 23.

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The concept in question is quite simple: a primary LCD would be visible at all times, and when the occasion called for another panel or two, they'd simply slide into view, ready to serve as a number pad, or settings control, predictive text display, or even a full-fledged split keyboard.

ENGADGET

Additionally, the number pad is now on the bottom third of the dual-slide mechanism, not a big deal, but just enough to throw off users upgrading the first time it's opened.

ENGADGET: Helio Ocean 2 Review Mobile

The bright yellow, fully Sprint-ified UI theme is an acquired taste, the reversed direction of the QWERTY slide takes a little getting used to, and we found the soft buttons by the d-pad just a little hard to single out.

ENGADGET: Hands-on with the Sprint Mogul by HTC Mobile