Dell faces the same hard competition for integration, consulting, systems management and all the other high-priced data-center services it always did from IBM, HP, Oracle, SAP and the big outsourcing and services companies that usually close the glass door in its face.
The cloud computing market is so undeveloped, the eventual winners so unclear and the need for interoperability and standardized platforms so great, that Dell is starting on a much more even level than it does in most other service markets.
It has an earned reputation for pretty good quality and decent responsiveness (middle of the road all the way; good at everything, excellent or terrible at almost nothing). Very few companies are leery of working with it, though most are not attracted to it by much more than the stability and price of its hardware.
Dell will probably never become a driving force in cloud computing, but it could easily become a solid second-tier provider, along with other companies that are primarily product vendors who are also pushing into cloud hosting -- IBM, Novell, Oracle, Microsoft.
What that says about cloud itself, though, is that the market is still so immature that many customers don't really know what they're getting when they talk about "cloud," but that the desire for it is so widespread that most companies with any kind of IT budget figure they're going to have to get some before long.
In TV jumping the shark means you've worn out all your creative potential for one product; in the market for products and services -- think of how designers down-market their haute couture for housewives and competitors knock it off -- jumping the shark (or crossing the chasm) means it's not only the cognoscenti who realize you offer something valuable. Everyone else does, too.
Most of them just prefer it in a nice, predictable package rather than something sharp and dangerous in neon colors they have to figure out before they can actually use.