I would love to see an open bootloader for iDevices. However, I do think that there is a difference between Apple, a company who makes their own hardware and have chosen this strategy, and Microsoft, a company who tries to impose their strategy on others (device makers).
In theory, the PC makers are the ones who can choose whether to apply Windows Certification to their devices. Of course, they are in a position where they have no real choice not to, and then we are getting into antitrust territory.
