- if the machine breaks, a key can be generated freely for the new machine. Of course, it needs some kind of proof the machine was really broken. - Paypal is preferred, but you can still contact support for other payment methods - Not all new applications are 1.4.5-hostile. The ones that entirely rely on new features (for instance sbars) of course don't work, but many others do. My applications do (at least, I try). :)