DOs announment talks about a storage product, which is strategically important and crucially something Linode has sorely needed for a long time. And yet the biggest development in recent years at Linode has been a proprietary stats and monitoring system built as an upsell, which doesn't really do anything distinctive that Nagios or another package couldn't provide.
Instead Linode is now switching their entire platform from Xen to KVM, a curious move which will create risk and cost velocity that could have been spent on product development.
I have been a huge supporter of Linode over the years, and the startup I co-founded is one of their biggest customers, but at this point DO seems like the winning horse to back.