Tabs and Windows
Function
Shortcut
New Tab
⌘ + T
Close Tab or Window
⌘ + W (same as many mac apps)
Go to Tab
⌘ + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction
⌘ + Option + Arrow Key
Cycle iTerm Windows
⌘ + backtick (true of all mac apps and works with desktops/