While going in-depth with this would be fun, it think mentioning some of the proprietary cables they force onto their users is one simple example:
* Non-standard headphone connectors (to force license costs onto manufacturer)
* Proprietary bluetooth codec (to force license costs onto manufacturers)
* Not using USB connectors on phones even though they were a part of the EU
group that concluded that all phones have to have USB connectors
The sudden interest in a web graphics api is somewhat conspicuous coming from a company known not to adhere to web standards.
There must be some reason for apples sudden interest in this stuff. Knowing apple they're interest probably isn't aligned with their users interest.