Thus, the quick fix is going with easy-to-deploy single-tenant architectures that soon run out of resources as they scale (because few items are shared). This is a way to jump into an emerging market, but without taking the time to design and build the required technology, it won't serve the market for any length of time.
There should be no debate here: Cloud computing, both private and public, requires the concept of multitenancy. The traditional providers are welcome in the cloud as long as they can provide multitenancy. If you can't do it, then don't try to argue that it's not needed.
Get to work!
This article, "The silly debate over multitenancy," originally appeared at InfoWorld.com. Read more of David Linthicum's Cloud Computing blog and follow the latest developments in cloud computing at InfoWorld.com.