Casio’s superslim Exilim digital camera just got a little bit smaller. Not by much, just 10%, but enough to make a difference. Plus, the new EX-S20 and EX-M20 (pictured from left to right) cameras still have the same two megapixel resolution as their predecessors, the EX-S2 and the EX-M2, and even improve on them with better battery life and integrated lens covers.