The army of startups — some 65 in all — pitching a packed room of investors at Y Combinator’s Demo Day today all begin the same way: Explaining what problem they’re trying to solve. Some resonate more quickly than others. That was the case with Sonalight. Its basic pitch is that it makes a better way to text and drive. This startup isn’t even bothering with the idea that texting and driving might be a bad thing; it’s taking as its starting point that people do just that. Founder Curtis Liu, a Google alum turned entrepreneur, asked the audience: who has never sent a text while driving? Not surprisingly, not a single hand went up. Read the full story on CNET.