I'm not sure if it's related to T708. If this is a duplicate...then, add it as a subtask of T708.
The issue starts at about 20 seconds.
When I open the Terminology tab, I'm trying to launch vim, but Terminology is not accepting the keyboard input. Then I switch between applications and Terminology starts accepting my input. It isn't limited to Terminology.
@zmike, I would like to try save you the trouble of attempting to reproduce this issue.
How can I get output (in the left most window) like this? http://i.imgur.com/Hutcpcm.png