All right, here's what we came up with. I know some of you are bound to be disappointed, but I think it'll be a nice surprise for most.
Right now, we have a list of names/paypal addresses/order info for all customers that experienced two separate issues with Paypal early on in the sale. (We feel pretty comfortable at this point that this list covers everyone.)
If your name is on this list, email firstname.lastname@example.org from the paypal email address used to order the bundle with subject line: "MacHeist PPI Bundle" and your full name/email address in the body, and if it checks out, you'll receive an email later this year with information on picking up the MacHeist 2 bundle for free.
Sorry about the delay on this, and I know there will be some more waiting, but I think ultimately a full free bundle will be worth the wait vs. a single app now.
Co-Creator of MacHeist, Clear, Partner at tap tap tap | follow me on twitter