Today only (7/08) Amazon is offering this 3M MP225a Mobile Projector plus Free Spare Battery for only $124.99 plus free standard shipping or free 2-day shipping for Amazon Prime members. Sales tax where applicable.

Why this deal is hot:
This 3M MP225a Mobile Projector is 58% off the retail price. This is the best deal found compared to $85 more found at other stores.

What this does and why you need it:
This 3M MP225a Mobile Projector features up to 2 hours of battery life per charge; projects a screen size of up to 80 inches diagonally; compatible with iPhone, iPod, iPad, iPad 2, laptops and gaming devices (additional cable(s) sold separately); 32 lumens of brightness; audio out for external speakers or headphones.