Mauricio Fern?ndez> (error corrections)
Mauricio Fern?ndez> It's a great presentation overall,
Mauricio Fern?ndez> we can't let these minor points stain it :)

The stains add character, a laugh, and show the presenter's human too :)
I enjoyed the End with a capital E in one of the code snippets.
(I'm not against fixing though)