Agreed. There is no substitute for good network security. If your business doesn't have behavior and signature-based network security and an isolated-host wireless network with strong encryption and authentication, you are doing something wrong. Furthermore, if your VPN gateway is open to the world and the password is shared, ANY employee can log in using ANY machine they so choose. If this person is still able to get into your secured network despite reformatting the laptop, what does it matter which OS is on it? That said, it sounds like the real issue here is that you're going to be pushing your boundaries from day 1. You might want to cool it, put the POS company laptop into a box, and just use your own personal machine.

Replace 'PHP' with 'Perl' and this is a good response.

It's cute, but not terribly impressive. There's only rudimentary scrolling of a map that is entirely hard-coded, no movement other than the blocks representing the world and the player itself (which is locked to a specific column that can only decrease). It might be a bit more of a technological achievement if the music was coming from the same board, but it's a totally separate, single purpose board.