Maybe my understanding of 'open beta' is incorrect, but I thought that it generally means 'free to the public for bug testing'.
This makes it hard for me to understand why we need to pay for a 'open beta'.
Having said that, I'm more than happy to pay if you setup a system to make this possible as yes I wan't the EXE just like everyone else. Though I'm left with the very disheartening feeling like it's only for 'special' people that tested out your payment system when asked. How are we meant to pay for 'beta' version with no payment system ?