I've never understood this sort of argument... the cost of expanding iMessage to multiple platforms would be in the millions. It's not like Apple would simply flip a switch somewhere. How could the government possibly compel a company to create a new service or product out of thin air?
I'm down for iMessage on every platform! There is no obligation for Apple to do this, but it would be sweet!
While I don't agree that iMessage should be available to "EVERYONE" I would like if I could access it on my stupid work Windows PC much like Google Hangouts lets me text and message people. Would certainly make life easier when the wife is texting me since I somehow always manage to miss the texts on my phone.
Because the government forcing things makes everyone happy!