Hello World...

++++++++++        initializes cell zero to 10
[
  >+++++++>++++++++++>+++>+<<<<-
]                 this loop sets the next four cells to 70/100/30/10
>++.              print   'H'
>+.               print   'e'
+++++++.                  'l'
.                         'l'
+++.                      'o'
>++.                      space
<<+++++++++++++++.        'W'
>.                        'o'
+++.                      'r'
------.                   'l'
--------.                 'd'
>+.                       '!'
>.                        newline