I must say, Kii is now beating the thumbs off of everyone else. They responded quickly to user feedback and now allow flexible side padding of the keyboard so that I can get the whole keyboard to sit comfortably within the reach of one thumb. I'm now swipe-typing one-handed. Who'd have thought we'd ever be able to do that?
Galaxy S 4 I9500 (WanamLite 2.0 ROM (Android 4.2.2, Adam 2.2 kernel), PhilZ Touch 5.08.8)
Galaxy Note 2 N7100 (WanamLite 4.2 ROM (Android 4.3), PhilZ Touch 18.104.22.168)
<= Galaxy S 3 <= Samsung Galaxy S 2, Galaxy Note, Galaxy Tab 7.7, and ASUS Transformer <= iPhone 3GS <= Motorola Milestone <= Nokia 5320 <= Kyocera K612