"If a universal e-book format is developed, itâ€™s unlikely Amazon, Apple and other companies will support the format."
And if Apple, Amazon, Sony, and Barnes & Noble refused to support the format, that would make it... well, NOT universal.
It is frustrating that if I buy a book for my Sony reader, I can't share it with my husband husband because he has a Kindle. I absolutely refuse to buy a book twice, once in each proprietary format. If I buy an actual book I can share with anyone I choose, anytime. I'm all for supporting the authors & publisher, but this certainly makes it hard to want to do things the legal way.