It may seem like a funny question to ask in the age of nanotechnology, but here it goes anyway: Can a gadget be too small? Most of you are probably saying "no, the smaller the better" reflexively - and I can't say I rightly blame you, given that in most cases, it's the wisest default answer. But I'm getting a little fed up with the notion that, as a rule of thumb, smaller is always better in the technology industry. It's a trend that seems to be widely accepted, but in many cases requires sacrificing functionality for looks and portability. Don't get me wrong: I love that you can now buy computers with multiple terabyte hard drives or 50+ inch televisions that are light enough to hang on the wall, but some gadgets simply take things too far. And, ironically, the types of products that would do best to stray from this trend are the ones we interact with the most, including cell phones, MP3 players and portable PCs.