This is a way too cool app add-in for Powerpoint.
Thermometer for PowerPoint is a free add-in that creates a thermometer style bar in the bottom area of the slide that shows how much of a presentation has progressed and how much more is remaining.
It's a very simple add-in and using it is so easy: one click on an icon and you can add or update your thermometer; another click and the thermometer is gone!
It automatically selects the colour based on the slide decks colour pallete.
It wont make your ppt slide deck go faster if it's boring but at least your audience will know how much longer they need to endure. Seriously though, you need to install this today, there is no reason why this shouldn't be added to every deck you show.
Great work Geetesh.