While there is nothing inherently wrong with what Quocirca has published in their report - their recommendations are all common-sense, they do neglect to explore the category of vendors who concern themselves with WAN Optimisation and / or Traffic Management.
These vendors have typically evolved from providing relatively 'dumb' load balancers to much more application and network-aware management devices - think of the evolution in intelligence from network hub to switch to load balancer to application traffic manager and you're getting there. For an overview of the playing field today, Gartner provides the following handy report: http://mediaproducts.gartner.com/reprints/f5networks/vol2/article1/article1.html
The benefit for the consumers of these vendors' products is essentially one of making more efficient use of the network, hardware and software already in place, with the associated cost savings that this approach yields. As you'd expect, the vast majority of these vendors originate from the US, however there is at least one British success story - Zeus Technology (http://www.zeus.com). Zeus has taken a different approach to all the other vendors by decoupling the clever software required to optimise the application traffic from the network hardware. They now offer the choice of software, hardware appliance and even VMware virtual machines for a truly hardware-independent approach.
If nothing else, it's worth taking a look at this plucky and innovative British software company successfully marking out its territory against larger US competitors.
Product Manager (formerly of Zeus Technology)