I'm looking at buying an iPhone 6 clone from China, specifically this one: http://youtu.be/h_jcXTf39bU
I'm wondering if it will work with koodo?
Another question will I be able to keep my current koodo plan or do I have to go with one of those bring your own phone plans offered by Koodo?
First of all, you can certainly keep any plan you have, and even ask for a 10% discount for bringing your own phone.
As for the iPhone 6 clone, chances are it won't work because Asian phones usually use different frequencies than the Telus/Bell network. If you have any specs of that phone, we'll be able to tell you if it will work.
Or, you can compare the specs yourself with this list: http://www.androidbugle.com/p/android... (in short, 850Mhz and 1900Mhz should be included to get the minimum HSPA speed. You won't get LTE for an almost certainty).