On my Ubuntu 11.10 machines running byobu 4.37 I can use the key combination Ctrl+← / Ctrl+→ to jump a word at a time in the terminal. However, on my Ubuntu 12.04 machines with byobu 5.17 this no longer works.
I've read that byobu has remapped those key combinations to resize splits, and now Alt+← and Alt+→ have the desired effect. However, I'm unable to find where Alt+← and Alt+→ are mapped, in order to remap Ctrl+← and Ctrl+→. If I unmap the key bindings for Ctrl+← and Ctrl+→, then the cursor moves only 1 character at a time, not 1 word at a time.