Is it bad if you have a jailbroken ipod touch?

No, it is not bad if you have a jailbroken iPod Touch. Jailbreaking an iPod Touch is just a way to access personalization settings that are not normally available for an iPod Touch. Jailbreaking is fine, to a certain extent, though. What is bad, though, is using the jailbreaking to download apps that cost money for free.