As someone who is mostly happy with Apple's operating system, I love this idea. I can buy a Mac mini and use it as a primary desktop/ dev system until Apple drops support for it. By that time, we should have working Linux drivers and support for keeping it running until it rusts out. Since it's sitting on my desk and the only moving part is the fan and the slowly degrading SSD, I could see getting 10-15 years out of it.

Obviously it would be better/ ideal if Apple financed this or better, made a full OSS Darwin install. I see dropping $3/ month for a couple years is cheap insurance.