Good evening @cafekief,
Thanks for your post! You can unfortunately not use a Rogers Infinite plan on your Rocket Stick line. However, you can definitely share data with up to 10 devices, with a Rogers Infinite plan, on your cellphone line.
You can add your device to your plan for $10/month, as they are compatible with Rogers Infinite plans.
These data-only devices share the data from your each of your smartphone lines. Each device requires a separate line(number) on your account.
Let us know if you have any other questions!