WPF
Windows Forms
Windows Store (coming...)
Android (coming...)
iOS (?...)
Linux (?...)

(File)
Ctrl+O -> Open
Ctrl+S -> Save
Ctrl+E -> Export
(Edit)
Ctrl+Z -> Undo
Ctrl+Y -> Redo
(Canvas)
G -> Create Block
H -> Single Selection
J -> Multi Selection
S -> Snap
Del -> Delete Selected
Ctrl+Del -> Clear
(Create)
P -> Pin
L -> Line
B -> Bézier
Q -> Quadratic Bézier
A -> Arc
R -> Rectangle
E -> Ellipse
T -> Text

Move -> Hover
Left Click -> Create Selection
Left Click -> Create Object
Move -> Move Created Object
Left Down+Move -> Move Selected Object