I recognize that, like myself, many backers have multiple iOS devices and would like to own more than one Mutator. Here is Kickstarter's policy on multiple-item pledge-levels:
"Product Design and Hardware projects can only offer one reward per pledge. Offering multiple quantities can imply that rewards are shrink-wrapped and ready to ship when they’re not. With some projects, we'll make exceptions for what we consider sensible sets — things like salt and pepper shakers, notebooks, building blocks, etc."
Please note that I am exploring all of my options, and will post an update soon.
In the meantime, if you would like the opportunity to order more than one Mutator without being required to create a new account, please let Kickstarter know here: