If you pledge for 1 iPlifier, there is no difference. It is $8 in both rewards.
If you want 2 or more iPlifier, the ACCOUNTANT REWARD offers a discount as you will pay for shipping only once.
Please note - shipping cost is $3 worldwide which includes North America as well.
If the speaker is covered, the speaker sound may not be heard by you. Since we all place the iPhone either on its face or back, the only space which is always uncovered is the side of the device.
While the Lightning connector is the same on both devices, the position of the speaker is slightly different. Thou the iPlifier will still have a positive effect on the sound of the iPod Touch, it will not be as substantial as with the iPhone 5.
The iPlifier will come in Black and White to fit the normal iPhone color as well as Kickstarter Green for the Kickstarter Fan Reward.
Additional color - Pink, Blue and Orange will be available as well.
Don't see the answer to your question? Ask the project creator directly.