Put it in your pocket, even the tiny fifth pocket that Steve Jobs famously pulled the original nano from back in 2006, and you absolutely won't be able to tell it's there.
Snake has come a long way since being the quintessential TI-86 title, and although Nimblebit is straying far from their sim offerings such as Tiny Tower and Pocket Planes, the title has a lot going for it.
Having email, the Internet, a PDA and your cell phone all rolled up into one tiny device in your pocket that's really manageable has really helped me be more efficient, particularly traveling the world because it all works globally.