Again, as the parent poster also posted, I think you have never worked on large data. Twitter is like a big mailbox, only that every mail only has 160 bytes. This has been solved 10 years ago.
We use play in all our projects and hit some bugs as well. (Like different versions of classes being in jars and in code -> signature mismatch)
It's a great project and no software is without bugs.
He means that if linkedin would be sold for 60 million, they would get the first 60 million. Then afterwards the normal shareholders are served until the initial ratio is reached.
There is no point proposing them to use dedicated servers as already many did. They are 100% sure dedicated servers cost more, so let them keep their ec2's and let them fail!
I wonder why google, yahoo and facebook don't run their site on ec2... if it's cheaper.